Corneal Surgery, LaserRefractive Surgical ProceduresLasers, ExcimerOphthalmologyCorneaLasersOptometryEye DiseasesVision ScreeningCataract ExtractionBlindnessLaser CoagulationOphthalmoscopyLasers, Solid-StatePhotographyVisual AcuityRetinopathy of PrematurityOphthalmologic Surgical ProceduresEye InjuriesEye Infections, ParasiticDiabetic RetinopathyGlaucomaEye InfectionsLaser Therapy, Low-LevelVision, LowVision DisordersCataractDiagnostic Techniques, OphthalmologicalRefractive ErrorsGross Domestic ProductPostoperative ComplicationsTreatment OutcomeVision Tests