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<?xml version="1.0" encoding="windows-1252"?> |
<!-- DFIN New ActiveDisclosure (SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ --> |
<!-- Creation Date :2023-09-28T01:43:56.9498+00:00 --> |
<!-- Copyright (c) 2023 Donnelly Financial Solutions, Inc. All Rights Reserved. --> |
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfProfitOrLossAndOtherComprehensiveIncome" xlink:href="opt-20230630.xsd#Role_StatementConsolidatedStatementsOfProfitOrLossAndOtherComprehensiveIncome" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfFinancialPosition" xlink:href="opt-20230630.xsd#Role_StatementConsolidatedStatementsOfFinancialPosition" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfProfitOrLossAndOtherComprehensiveIncome2" xlink:href="opt-20230630.xsd#Role_StatementConsolidatedStatementsOfProfitOrLossAndOtherComprehensiveIncome2" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlows" xlink:href="opt-20230630.xsd#Role_StatementConsolidatedStatementsOfCashFlows" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureOtherIncomeScheduleOfOtherIncomeDetails" xlink:href="opt-20230630.xsd#Role_DisclosureOtherIncomeScheduleOfOtherIncomeDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureResearchAndDevelopmentExpensesSummaryOfResearchAndDevelopmentExpensesDetails" xlink:href="opt-20230630.xsd#Role_DisclosureResearchAndDevelopmentExpensesSummaryOfResearchAndDevelopmentExpensesDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureExpensesSummaryOfExpensesDetails" xlink:href="opt-20230630.xsd#Role_DisclosureExpensesSummaryOfExpensesDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureFinanceIncomeSummaryOfFinanceIncomeDetails" xlink:href="opt-20230630.xsd#Role_DisclosureFinanceIncomeSummaryOfFinanceIncomeDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureNetForeignExchangeLossSummaryOfNetForeignExchangeLossDetails" xlink:href="opt-20230630.xsd#Role_DisclosureNetForeignExchangeLossSummaryOfNetForeignExchangeLossDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfIncomeTaxBenefitAndCurrentTaxReceivableDetails" xlink:href="opt-20230630.xsd#Role_DisclosureIncomeTaxesSummaryOfIncomeTaxBenefitAndCurrentTaxReceivableDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfReconciliationBetweenIncomeTaxBenefitAndProductOfAccountingLossBeforeIncomeTaxMultipliedByGroupSApplicableIncomeTaxRateDetails" xlink:href="opt-20230630.xsd#Role_DisclosureIncomeTaxesSummaryOfReconciliationBetweenIncomeTaxBenefitAndProductOfAccountingLossBeforeIncomeTaxMultipliedByGroupSApplicableIncomeTaxRateDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentAssetsCashAndCashEquivalentsSummaryOfCashAndCashEquivalentsDetails" xlink:href="opt-20230630.xsd#Role_DisclosureCurrentAssetsCashAndCashEquivalentsSummaryOfCashAndCashEquivalentsDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentAssetsReceivablesSummaryOfCurrentAssetsReceivablesDetails" xlink:href="opt-20230630.xsd#Role_DisclosureCurrentAssetsReceivablesSummaryOfCurrentAssetsReceivablesDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentAssetsPrepaymentsSummaryOfCurrentAssetsPrepaymentsDetails" xlink:href="opt-20230630.xsd#Role_DisclosureCurrentAssetsPrepaymentsSummaryOfCurrentAssetsPrepaymentsDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureNonCurrentAssetsPrepaymentsSummaryOfNonCurrentAssetsPrepaymentsDetails" xlink:href="opt-20230630.xsd#Role_DisclosureNonCurrentAssetsPrepaymentsSummaryOfNonCurrentAssetsPrepaymentsDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentLiabilitiesPayablesSummaryOfCurrentLiabilitiesPayablesDetails" xlink:href="opt-20230630.xsd#Role_DisclosureCurrentLiabilitiesPayablesSummaryOfCurrentLiabilitiesPayablesDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentLiabilitiesProvisionsSummaryOfCurrentProvisionsDetails" xlink:href="opt-20230630.xsd#Role_DisclosureCurrentLiabilitiesProvisionsSummaryOfCurrentProvisionsDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureNonCurrentLiabilitiesProvisionsSummaryOfNonCurrentLiabilitiesProvisionsDetails" xlink:href="opt-20230630.xsd#Role_DisclosureNonCurrentLiabilitiesProvisionsSummaryOfNonCurrentLiabilitiesProvisionsDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureAccumulatedLossesAndReservesSummaryOfAccumulatedLossesAndReservesDetails" xlink:href="opt-20230630.xsd#Role_DisclosureAccumulatedLossesAndReservesSummaryOfAccumulatedLossesAndReservesDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCashFlowStatementsReconciliationSummaryOfCashFlowStatementsReconciliationDetails" xlink:href="opt-20230630.xsd#Role_DisclosureCashFlowStatementsReconciliationSummaryOfCashFlowStatementsReconciliationDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://opthea.com/20230630/taxonomy/role/Role_DisclosureKeyManagementPersonnelScheduleOfCompensationOfKeyManagementPersonnelDetails" xlink:href="opt-20230630.xsd#Role_DisclosureKeyManagementPersonnelScheduleOfCompensationOfKeyManagementPersonnelDetails" xlink:type="simple"/> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfProfitOrLossAndOtherComprehensiveIncome"> |
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| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLossBeforeTax" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ComprehensiveIncome" xlink:to="ifrs-full_OtherComprehensiveIncome" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_Revenue" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherComprehensiveIncome" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_IncomeTaxExpenseContinuingOperations" order="1" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_OtherIncome" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_ResearchAndDevelopmentExpense" order="2" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="opt_PatentAndIntellectualPropertyExpenses" order="3" weight="-1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="us-gaap_InterestExpense" order="5" weight="-1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_FinanceIncomeCost" order="6" weight="1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="opt_FairValueAdjustmentGainOnDFA" order="8" weight="1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_AdministrativeExpense" order="9" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" order="12" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="ifrs-full_OtherComprehensiveIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProfitLoss" xlink:label="ifrs-full_ProfitLoss"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ifrs-full_ProfitLossBeforeTax"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ifrs-full_ComprehensiveIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_Revenue" xlink:label="ifrs-full_Revenue"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherIncome" xlink:label="ifrs-full_OtherIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ResearchAndDevelopmentExpense" xlink:label="ifrs-full_ResearchAndDevelopmentExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_PatentAndIntellectualPropertyExpenses" xlink:label="opt_PatentAndIntellectualPropertyExpenses"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_FinanceIncomeCost" xlink:label="ifrs-full_FinanceIncomeCost"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_FairValueAdjustmentGainOnDFA" xlink:label="opt_FairValueAdjustmentGainOnDFA"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdministrativeExpense" xlink:label="ifrs-full_AdministrativeExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfFinancialPosition"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_PropertyPlantAndEquipment" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentProvisions" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_TradeAndOtherCurrentPayables" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_CurrentAssets" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NetAssetsLiabilities" xlink:to="ifrs-full_Assets" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CashAndCashEquivalents" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Liabilities" xlink:to="ifrs-full_CurrentLiabilities" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_IssuedCapital" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_RightofuseAssets" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentLeaseLiabilities" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_NoncurrentAssets" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NetAssetsLiabilities" xlink:to="ifrs-full_Liabilities" order="1" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CurrentTaxAssetsCurrent" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Liabilities" xlink:to="ifrs-full_NoncurrentLiabilities" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_NoncurrentPrepayments" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="opt_NoncurrentFinancialLiabilityDueToRelatedParty" order="2" weight="1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentProvisions" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_TradeAndOtherCurrentReceivables" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_RetainedEarnings" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentLeaseLiabilities" order="3" weight="1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CurrentPrepayments" order="3" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_OtherReserves" order="3" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NoncurrentAssets" xlink:label="ifrs-full_NoncurrentAssets"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="ifrs-full_PropertyPlantAndEquipment"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="ifrs-full_NoncurrentLiabilities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NoncurrentProvisions" xlink:label="ifrs-full_NoncurrentProvisions"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentLiabilities" xlink:label="ifrs-full_CurrentLiabilities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="ifrs-full_TradeAndOtherCurrentPayables"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_Assets" xlink:label="ifrs-full_Assets"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentAssets" xlink:label="ifrs-full_CurrentAssets"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NetAssetsLiabilities" xlink:label="ifrs-full_NetAssetsLiabilities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="ifrs-full_CashAndCashEquivalents"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_Liabilities" xlink:label="ifrs-full_Liabilities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_Equity" xlink:label="ifrs-full_Equity"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IssuedCapital" xlink:label="ifrs-full_IssuedCapital"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_RightofuseAssets" xlink:label="ifrs-full_RightofuseAssets"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentLeaseLiabilities" xlink:label="ifrs-full_CurrentLeaseLiabilities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentTaxAssetsCurrent" xlink:label="ifrs-full_CurrentTaxAssetsCurrent"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NoncurrentPrepayments" xlink:label="ifrs-full_NoncurrentPrepayments"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_NoncurrentFinancialLiabilityDueToRelatedParty" xlink:label="opt_NoncurrentFinancialLiabilityDueToRelatedParty"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentProvisions" xlink:label="ifrs-full_CurrentProvisions"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_RetainedEarnings" xlink:label="ifrs-full_RetainedEarnings"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NoncurrentLeaseLiabilities" xlink:label="ifrs-full_NoncurrentLeaseLiabilities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentPrepayments" xlink:label="ifrs-full_CurrentPrepayments"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherReserves" xlink:label="ifrs-full_OtherReserves"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfProfitOrLossAndOtherComprehensiveIncome2"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLossAttributableToOwnersOfParent" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ComprehensiveIncome" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" order="0" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProfitLoss" xlink:label="ifrs-full_ProfitLoss"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ifrs-full_ComprehensiveIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlows"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivities" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" order="0" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" order="0" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="ifrs-full_InterestReceivedClassifiedAsOperatingActivities" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="ifrs-full_ProceedsFromIssuingShares" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="ifrs-full_ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="opt_RevenueFromRoyaltiesAndLicense" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="opt_NetProceedsOnIssueOfPreFundedWarrants" order="2" weight="1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="opt_GrantsAndOtherIncome" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="opt_PaymentOfLeaseInterest" order="3" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="opt_NetProceedsFromDevelopmentFundingAgreement" order="4" weight="1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees" order="4" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="ifrs-full_ProceedsFromExerciseOfOptions" order="5" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="opt_AdjustmentsForIncreaseDecreaseInResearchAndDevelopmentTaxIncentiveSchemeCreditReceived" order="5" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:label="ifrs-full_InterestReceivedClassifiedAsOperatingActivities"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProceedsFromIssuingShares" xlink:label="ifrs-full_ProceedsFromIssuingShares"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets" xlink:label="ifrs-full_ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_RevenueFromRoyaltiesAndLicense" xlink:label="opt_RevenueFromRoyaltiesAndLicense"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_NetProceedsOnIssueOfPreFundedWarrants" xlink:label="opt_NetProceedsOnIssueOfPreFundedWarrants"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_GrantsAndOtherIncome" xlink:label="opt_GrantsAndOtherIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_PaymentOfLeaseInterest" xlink:label="opt_PaymentOfLeaseInterest"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_NetProceedsFromDevelopmentFundingAgreement" xlink:label="opt_NetProceedsFromDevelopmentFundingAgreement"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees" xlink:label="ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProceedsFromExerciseOfOptions" xlink:label="ifrs-full_ProceedsFromExerciseOfOptions"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_AdjustmentsForIncreaseDecreaseInResearchAndDevelopmentTaxIncentiveSchemeCreditReceived" xlink:label="opt_AdjustmentsForIncreaseDecreaseInResearchAndDevelopmentTaxIncentiveSchemeCreditReceived"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureOtherIncomeScheduleOfOtherIncomeDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherIncome" xlink:to="opt_GrantsAndOtherIncomeExcludedPriorYearAccruedRevenueReceived" order="0" weight="-1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherIncome" xlink:label="ifrs-full_OtherIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_GrantsAndOtherIncomeExcludedPriorYearAccruedRevenueReceived" xlink:label="opt_GrantsAndOtherIncomeExcludedPriorYearAccruedRevenueReceived"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureResearchAndDevelopmentExpensesSummaryOfResearchAndDevelopmentExpensesDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ResearchAndDevelopmentExpense" xlink:to="opt_ResearchProjectCosts" order="0" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ResearchAndDevelopmentExpense" xlink:label="ifrs-full_ResearchAndDevelopmentExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_ResearchProjectCosts" xlink:label="opt_ResearchProjectCosts"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureExpensesSummaryOfExpensesDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DepreciationExpense" xlink:to="ifrs-full_DepreciationPropertyPlantAndEquipment" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_AdministrativeExpense" xlink:to="ifrs-full_EmployeeBenefitsExpense" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_EmployeeBenefitsExpense" xlink:to="ifrs-full_WagesAndSalaries" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_InsuranceExpense" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DepreciationExpense" xlink:to="opt_DepreciationLeaseholdImprovements" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_AdministrativeExpense" xlink:to="ifrs-full_OtherExpenseByNature" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_EmployeeBenefitsExpense" xlink:to="opt_CashBonuses" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_BankAndSimilarCharges" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DepreciationExpense" xlink:to="ifrs-full_DepreciationRightofuseAssets" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_AdministrativeExpense" xlink:to="ifrs-full_DepreciationExpense" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_EmployeeBenefitsExpense" xlink:to="opt_Superannuation" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_AuditorsRemuneration" order="2" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_AdministrativeExpense" xlink:to="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" order="3" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_EmployeeBenefitsExpense" xlink:to="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" order="3" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_TravelExpense" order="3" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="opt_PayrollTax" order="4" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_ProfessionalFeesExpense" order="5" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_FeeAndCommissionExpense" order="6" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_BrokerageFeeExpense" order="7" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_MiscellaneousOtherOperatingExpense" order="8" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_DepreciationExpense" xlink:label="ifrs-full_DepreciationExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipment"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdministrativeExpense" xlink:label="ifrs-full_AdministrativeExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_EmployeeBenefitsExpense" xlink:label="ifrs-full_EmployeeBenefitsExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_WagesAndSalaries" xlink:label="ifrs-full_WagesAndSalaries"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherExpenseByNature" xlink:label="ifrs-full_OtherExpenseByNature"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_InsuranceExpense" xlink:label="ifrs-full_InsuranceExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_DepreciationLeaseholdImprovements" xlink:label="opt_DepreciationLeaseholdImprovements"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_CashBonuses" xlink:label="opt_CashBonuses"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_BankAndSimilarCharges" xlink:label="ifrs-full_BankAndSimilarCharges"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_DepreciationRightofuseAssets" xlink:label="ifrs-full_DepreciationRightofuseAssets"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_Superannuation" xlink:label="opt_Superannuation"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AuditorsRemuneration" xlink:label="ifrs-full_AuditorsRemuneration"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:label="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_TravelExpense" xlink:label="ifrs-full_TravelExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_PayrollTax" xlink:label="opt_PayrollTax"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProfessionalFeesExpense" xlink:label="ifrs-full_ProfessionalFeesExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_FeeAndCommissionExpense" xlink:label="ifrs-full_FeeAndCommissionExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_BrokerageFeeExpense" xlink:label="ifrs-full_BrokerageFeeExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="ifrs-full_MiscellaneousOtherOperatingExpense"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureFinanceIncomeSummaryOfFinanceIncomeDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_FinanceIncome" xlink:to="ifrs-full_RevenueFromInterest" order="0" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_FinanceIncome" xlink:label="ifrs-full_FinanceIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_RevenueFromInterest" xlink:label="ifrs-full_RevenueFromInterest"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureNetForeignExchangeLossSummaryOfNetForeignExchangeLossDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:to="opt_NetForeignExchangeGainLoss" order="0" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_NetForeignExchangeGainLoss" xlink:label="opt_NetForeignExchangeGainLoss"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfIncomeTaxBenefitAndCurrentTaxReceivableDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:to="ifrs-full_CurrentTaxExpenseIncome" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="ifrs-full_DeferredTaxExpenseIncome" order="1" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:label="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentTaxExpenseIncome" xlink:label="ifrs-full_CurrentTaxExpenseIncome"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_DeferredTaxExpenseIncome" xlink:label="ifrs-full_DeferredTaxExpenseIncome"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfReconciliationBetweenIncomeTaxBenefitAndProductOfAccountingLossBeforeIncomeTaxMultipliedByGroupSApplicableIncomeTaxRateDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="ifrs-full_AccountingProfit" order="0" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="opt_TaxEffectOfResearchAndDevelopmentTaxIncentiveOnEligibleExpenses" order="2" weight="-1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" order="3" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="opt_TaxEffectOfOtherNonDeductibleExpensesShareBasedPaymentExpense" order="4" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="opt_TaxEffectOfAmountOfTemporaryDifferencesAndCarriedForwardTaxLossesNotRecognized" order="5" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AccountingProfit" xlink:label="ifrs-full_AccountingProfit"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:label="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_TaxEffectOfResearchAndDevelopmentTaxIncentiveOnEligibleExpenses" xlink:label="opt_TaxEffectOfResearchAndDevelopmentTaxIncentiveOnEligibleExpenses"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:label="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_TaxEffectOfOtherNonDeductibleExpensesShareBasedPaymentExpense" xlink:label="opt_TaxEffectOfOtherNonDeductibleExpensesShareBasedPaymentExpense"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_TaxEffectOfAmountOfTemporaryDifferencesAndCarriedForwardTaxLossesNotRecognized" xlink:label="opt_TaxEffectOfAmountOfTemporaryDifferencesAndCarriedForwardTaxLossesNotRecognized"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentAssetsCashAndCashEquivalentsSummaryOfCashAndCashEquivalentsDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashAndCashEquivalents" xlink:to="opt_CashAndCashEquivalentsExcludingShortTermDeposits" order="1" weight="1" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashAndCashEquivalents" xlink:to="ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" order="2" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="ifrs-full_CashAndCashEquivalents"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_CashAndCashEquivalentsExcludingShortTermDeposits" xlink:label="opt_CashAndCashEquivalentsExcludingShortTermDeposits"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:label="ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentAssetsReceivablesSummaryOfCurrentAssetsReceivablesDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_CurrentInterestReceivable" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_CurrentReceivablesFromTaxesOtherThanIncomeTax" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_OtherCurrentReceivables" order="2" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentInterestReceivable" xlink:label="ifrs-full_CurrentInterestReceivable"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentReceivablesFromTaxesOtherThanIncomeTax" xlink:label="ifrs-full_CurrentReceivablesFromTaxesOtherThanIncomeTax"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherCurrentReceivables" xlink:label="ifrs-full_OtherCurrentReceivables"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentAssetsPrepaymentsSummaryOfCurrentAssetsPrepaymentsDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentPrepayments" xlink:to="opt_ResearchAndDevelopmentContractResearchOrganizationPrepayments" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentPrepayments" xlink:to="opt_InsuranceCurrentPrepayments" order="1" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentPrepayments" xlink:to="opt_OtherPrepaymentsCurrent" order="2" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentPrepayments" xlink:label="ifrs-full_CurrentPrepayments"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_ResearchAndDevelopmentContractResearchOrganizationPrepayments" xlink:label="opt_ResearchAndDevelopmentContractResearchOrganizationPrepayments"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_InsuranceCurrentPrepayments" xlink:label="opt_InsuranceCurrentPrepayments"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_OtherPrepaymentsCurrent" xlink:label="opt_OtherPrepaymentsCurrent"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureNonCurrentAssetsPrepaymentsSummaryOfNonCurrentAssetsPrepaymentsDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentPrepayments" xlink:to="opt_InsurancePrepayments" order="0" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NoncurrentPrepayments" xlink:label="ifrs-full_NoncurrentPrepayments"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_InsurancePrepayments" xlink:label="opt_InsurancePrepayments"/> |
| | </link:calculationLink> |
| <link:calculationLink xlink:type="extended" xlink:role="http://opthea.com/20230630/taxonomy/role/Role_DisclosureCurrentLiabilitiesPayablesSummaryOfCurrentLiabilitiesPayablesDetails"> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:to="ifrs-full_ShorttermBorrowings" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:to="ifrs-full_CurrentTaxLiabilitiesCurrent" order="1" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ShorttermBorrowings" xlink:label="ifrs-full_ShorttermBorrowings"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent"/> |
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| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentProvisions" xlink:to="opt_CurrentProvisionsForAnnualLeave" order="0" weight="1.00" use="optional"/> |
| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentProvisions" xlink:to="opt_CurrentProvisionsForLongServiceLeave" order="1" weight="1.00" use="optional"/> |
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| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_CurrentProvisionsForAnnualLeave" xlink:label="opt_CurrentProvisionsForAnnualLeave"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_CurrentProvisionsForLongServiceLeave" xlink:label="opt_CurrentProvisionsForLongServiceLeave"/> |
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| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentProvisions" xlink:to="opt_LongServiceLeaveNoncurrent" order="0" weight="1.00" use="optional"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_NoncurrentProvisions" xlink:label="ifrs-full_NoncurrentProvisions"/> |
| | <link:loc xlink:type="locator" xlink:href="opt-20230630.xsd#opt_LongServiceLeaveNoncurrent" xlink:label="opt_LongServiceLeaveNoncurrent"/> |
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| | <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherReserves" xlink:to="ifrs-full_ReserveOfSharebasedPayments" order="1" weight="1.00" use="optional"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OtherReserves" xlink:label="ifrs-full_OtherReserves"/> |
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