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Schematic illustration of SMILE enhancement using surface ablation, and a secondary reSMILE procedure posteriorly to the primary interface. This so-called “sub-cap lenticule extraction” reuses the primary SMILE interface as the cap cut of the secondary SMILE, and thus only introduces a new posterior plane and a new lenticule sidecut to create a new lenticule. The primary SMILE opening incision can also be reused for secondary lenticule extraction (grey dotted line).
