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<?xml version="1.0" encoding="windows-1252"?> |
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| <roleRef roleURI="http://lightwavelogic.com/role/lwlg-bs" xlink:type="simple" xlink:href="lwlg-20200630.xsd#lwlg-bs"/> |
| <roleRef roleURI="http://lightwavelogic.com/role/StatementsOfOperations" xlink:type="simple" xlink:href="lwlg-20200630.xsd#StatementsOfOperations"/> |
| <roleRef roleURI="http://lightwavelogic.com/role/StatementsOfCashFlow" xlink:type="simple" xlink:href="lwlg-20200630.xsd#StatementsOfCashFlow"/> |
| <roleRef roleURI="http://lightwavelogic.com/role/PrepaidExpensesAndOtherCurrentAssetsScheduleOfPrepaidExpensesAndOtherCurrentAssetsConsistDetails" xlink:type="simple" xlink:href="lwlg-20200630.xsd#PrepaidExpensesAndOtherCurrentAssetsScheduleOfPrepaidExpensesAndOtherCurrentAssetsConsistDetails"/> |
| <roleRef roleURI="http://lightwavelogic.com/role/PropertyAndEquipmentScheduleOfEquipmentDetails" xlink:type="simple" xlink:href="lwlg-20200630.xsd#PropertyAndEquipmentScheduleOfEquipmentDetails"/> |
| <roleRef roleURI="http://lightwavelogic.com/role/IntangibleAssetsScheduleOfPatentsDetails" xlink:type="simple" xlink:href="lwlg-20200630.xsd#IntangibleAssetsScheduleOfPatentsDetails"/> |
| <roleRef roleURI="http://lightwavelogic.com/role/CommitmentsScheduleOfFutureLeasePaymentsOfOperatingLeasesDetails" xlink:type="simple" xlink:href="lwlg-20200630.xsd#CommitmentsScheduleOfFutureLeasePaymentsOfOperatingLeasesDetails"/> |
| <calculationLink xlink:type="extended" xlink:role="http://lightwavelogic.com/role/lwlg-bs"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="locator_us-gaap_LiabilitiesAndStockholdersEquity"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities" xlink:label="locator_us-gaap_Liabilities"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="locator_us-gaap_Liabilities" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="locator_us-gaap_LiabilitiesCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_Liabilities" xlink:to="locator_us-gaap_LiabilitiesCurrent" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:label="locator_us-gaap_AccountsPayableRelatedPartiesCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesCurrent" xlink:to="locator_us-gaap_AccountsPayableRelatedPartiesCurrent" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="locator_us-gaap_AccountsPayableCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesCurrent" xlink:to="locator_us-gaap_AccountsPayableCurrent" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="locator_us-gaap_AccruedLiabilitiesCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesCurrent" xlink:to="locator_us-gaap_AccruedLiabilitiesCurrent" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_CurrentPortionOfEquipmentPurchase" xlink:label="locator_lwlg_CurrentPortionOfEquipmentPurchase"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesCurrent" xlink:to="locator_lwlg_CurrentPortionOfEquipmentPurchase" use="optional" priority="0" order="4" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_DeferredLeaseLiabilityCurrent" xlink:label="locator_lwlg_DeferredLeaseLiabilityCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesCurrent" xlink:to="locator_lwlg_DeferredLeaseLiabilityCurrent" use="optional" priority="0" order="5" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="locator_us-gaap_OperatingLeaseLiabilityCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesCurrent" xlink:to="locator_us-gaap_OperatingLeaseLiabilityCurrent" use="optional" priority="0" order="6" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_PaycheckProtectionProgramAdvance" xlink:label="locator_lwlg_PaycheckProtectionProgramAdvance"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesCurrent" xlink:to="locator_lwlg_PaycheckProtectionProgramAdvance" use="optional" priority="0" order="7" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="locator_us-gaap_LiabilitiesNoncurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_Liabilities" xlink:to="locator_us-gaap_LiabilitiesNoncurrent" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_DeferredLeaseLiabilityNoncurrent" xlink:label="locator_lwlg_DeferredLeaseLiabilityNoncurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesNoncurrent" xlink:to="locator_lwlg_DeferredLeaseLiabilityNoncurrent" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="locator_us-gaap_OperatingLeaseLiabilityNoncurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesNoncurrent" xlink:to="locator_us-gaap_OperatingLeaseLiabilityNoncurrent" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_LongTermEquipmentPurchaseNetOfCurrentPortion" xlink:label="locator_lwlg_LongTermEquipmentPurchaseNetOfCurrentPortion"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesNoncurrent" xlink:to="locator_lwlg_LongTermEquipmentPurchaseNetOfCurrentPortion" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="locator_us-gaap_StockholdersEquity"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="locator_us-gaap_StockholdersEquity" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="locator_us-gaap_PreferredStockValue"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_StockholdersEquity" xlink:to="locator_us-gaap_PreferredStockValue" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockValue" xlink:label="locator_us-gaap_CommonStockValue"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_StockholdersEquity" xlink:to="locator_us-gaap_CommonStockValue" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="locator_us-gaap_AdditionalPaidInCapitalCommonStock"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_StockholdersEquity" xlink:to="locator_us-gaap_AdditionalPaidInCapitalCommonStock" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="locator_us-gaap_RetainedEarningsAccumulatedDeficit"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_StockholdersEquity" xlink:to="locator_us-gaap_RetainedEarningsAccumulatedDeficit" use="optional" priority="0" order="4" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets" xlink:label="locator_us-gaap_Assets"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="locator_us-gaap_AssetsCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_Assets" xlink:to="locator_us-gaap_AssetsCurrent" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="locator_us-gaap_CashAndCashEquivalentsAtCarryingValue"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_AssetsCurrent" xlink:to="locator_us-gaap_CashAndCashEquivalentsAtCarryingValue" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_AssetsCurrent" xlink:to="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="locator_us-gaap_PropertyPlantAndEquipmentNet"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_Assets" xlink:to="locator_us-gaap_PropertyPlantAndEquipmentNet" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="locator_us-gaap_OtherAssetsNoncurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_Assets" xlink:to="locator_us-gaap_OtherAssetsNoncurrent" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="locator_us-gaap_FiniteLivedIntangibleAssetsNet"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_OtherAssetsNoncurrent" xlink:to="locator_us-gaap_FiniteLivedIntangibleAssetsNet" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="locator_us-gaap_OperatingLeaseRightOfUseAsset"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_OtherAssetsNoncurrent" xlink:to="locator_us-gaap_OperatingLeaseRightOfUseAsset" use="optional" priority="0" order="2" weight="1"/> |
| | </calculationLink> |
| <calculationLink xlink:type="extended" xlink:role="http://lightwavelogic.com/role/StatementsOfOperations"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="locator_us-gaap_NetIncomeLoss"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="locator_us-gaap_OperatingIncomeLoss"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetIncomeLoss" xlink:to="locator_us-gaap_OperatingIncomeLoss" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Revenues" xlink:label="locator_us-gaap_Revenues"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_OperatingIncomeLoss" xlink:to="locator_us-gaap_Revenues" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="locator_us-gaap_OperatingExpenses"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_OperatingIncomeLoss" xlink:to="locator_us-gaap_OperatingExpenses" use="optional" priority="0" order="2" weight="-1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="locator_us-gaap_ResearchAndDevelopmentExpense"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_OperatingExpenses" xlink:to="locator_us-gaap_ResearchAndDevelopmentExpense" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="locator_us-gaap_GeneralAndAdministrativeExpense"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_OperatingExpenses" xlink:to="locator_us-gaap_GeneralAndAdministrativeExpense" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="locator_us-gaap_InvestmentIncomeInterest"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetIncomeLoss" xlink:to="locator_us-gaap_InvestmentIncomeInterest" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_CommitmentFee" xlink:label="locator_lwlg_CommitmentFee"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetIncomeLoss" xlink:to="locator_lwlg_CommitmentFee" use="optional" priority="0" order="3" weight="-1"/> |
| | </calculationLink> |
| <calculationLink xlink:type="extended" xlink:role="http://lightwavelogic.com/role/StatementsOfCashFlow"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="locator_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="locator_us-gaap_NetIncomeLoss"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_NetIncomeLoss" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockOptionPlanExpense" xlink:label="locator_us-gaap_StockOptionPlanExpense"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_StockOptionPlanExpense" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:label="locator_us-gaap_AdjustmentOfWarrantsGrantedForServices"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_AdjustmentOfWarrantsGrantedForServices" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:label="locator_us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" use="optional" priority="0" order="4" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="locator_us-gaap_DepreciationAndAmortization"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_DepreciationAndAmortization" use="optional" priority="0" order="5" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="locator_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" use="optional" priority="0" order="6" weight="-1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:label="locator_us-gaap_IncreaseDecreaseInAccountsPayableTrade"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_IncreaseDecreaseInAccountsPayableTrade" use="optional" priority="0" order="7" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties" xlink:label="locator_us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties" use="optional" priority="0" order="8" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="locator_us-gaap_IncreaseDecreaseInAccruedLiabilities"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_us-gaap_IncreaseDecreaseInAccruedLiabilities" use="optional" priority="0" order="9" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_IncreaseDecreaseInDeferredLeaseLiability" xlink:label="locator_lwlg_IncreaseDecreaseInDeferredLeaseLiability"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_lwlg_IncreaseDecreaseInDeferredLeaseLiability" use="optional" priority="0" order="10" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_ProceedsFromPaycheckProtectionProgramAdvance" xlink:label="locator_lwlg_ProceedsFromPaycheckProtectionProgramAdvance"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="locator_lwlg_ProceedsFromPaycheckProtectionProgramAdvance" use="optional" priority="0" order="11" weight="-1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="locator_us-gaap_NetCashProvidedByUsedInInvestingActivities"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="locator_us-gaap_NetCashProvidedByUsedInInvestingActivities" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="locator_us-gaap_PaymentsToAcquireIntangibleAssets"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="locator_us-gaap_PaymentsToAcquireIntangibleAssets" use="optional" priority="0" order="1" weight="-1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="locator_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="locator_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" use="optional" priority="0" order="2" weight="-1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="locator_us-gaap_NetCashProvidedByUsedInFinancingActivities"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="locator_us-gaap_NetCashProvidedByUsedInFinancingActivities" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="locator_us-gaap_ProceedsFromIssuanceOfCommonStock"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="locator_us-gaap_ProceedsFromIssuanceOfCommonStock" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_RepaymentOfEquipmentPurchased" xlink:label="locator_lwlg_RepaymentOfEquipmentPurchased"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="locator_lwlg_RepaymentOfEquipmentPurchased" use="optional" priority="0" order="2" weight="-1"/> |
| | </calculationLink> |
| <calculationLink xlink:type="extended" xlink:role="http://lightwavelogic.com/role/PrepaidExpensesAndOtherCurrentAssetsScheduleOfPrepaidExpensesAndOtherCurrentAssetsConsistDetails"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_ResearchDevelopmentCredit" xlink:label="locator_lwlg_ResearchDevelopmentCredit"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="locator_lwlg_ResearchDevelopmentCredit" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidRent" xlink:label="locator_us-gaap_PrepaidRent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="locator_us-gaap_PrepaidRent" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidInsurance" xlink:label="locator_us-gaap_PrepaidInsurance"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="locator_us-gaap_PrepaidInsurance" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherPrepaidExpenseCurrent" xlink:label="locator_us-gaap_OtherPrepaidExpenseCurrent"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="locator_us-gaap_OtherPrepaidExpenseCurrent" use="optional" priority="0" order="4" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_PrepaidMaterials" xlink:label="locator_lwlg_PrepaidMaterials"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="locator_lwlg_PrepaidMaterials" use="optional" priority="0" order="5" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="lwlg-20200630.xsd#lwlg_PrototypeDevices" xlink:label="locator_lwlg_PrototypeDevices"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="locator_lwlg_PrototypeDevices" use="optional" priority="0" order="6" weight="1"/> |
| | </calculationLink> |
| <calculationLink xlink:type="extended" xlink:role="http://lightwavelogic.com/role/PropertyAndEquipmentScheduleOfEquipmentDetails"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="locator_us-gaap_PropertyPlantAndEquipmentNet"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="locator_us-gaap_PropertyPlantAndEquipmentGross"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="locator_us-gaap_PropertyPlantAndEquipmentGross" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="locator_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="locator_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" use="optional" priority="0" order="2" weight="-1"/> |
| | </calculationLink> |
| <calculationLink xlink:type="extended" xlink:role="http://lightwavelogic.com/role/IntangibleAssetsScheduleOfPatentsDetails"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="locator_us-gaap_FiniteLivedIntangibleAssetsNet"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedPatentsGross" xlink:label="locator_us-gaap_FiniteLivedPatentsGross"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="locator_us-gaap_FiniteLivedPatentsGross" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="locator_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="locator_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" use="optional" priority="0" order="2" weight="-1"/> |
| | </calculationLink> |
| <calculationLink xlink:type="extended" xlink:role="http://lightwavelogic.com/role/CommitmentsScheduleOfFutureLeasePaymentsOfOperatingLeasesDetails"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" use="optional" priority="0" order="1" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" use="optional" priority="0" order="2" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" use="optional" priority="0" order="3" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:label="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" use="optional" priority="0" order="4" weight="1"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive" xlink:label="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/> |
| | <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="locator_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive" use="optional" priority="0" order="5" weight="1"/> |
| | </calculationLink> |
| </linkbase> |