National Eye Institute (U.S.)Sickness Impact ProfileOphthalmologyVisual AcuityNational Institutes of Health (U.S.)Vision, LowVision DisordersEye DiseasesMacular DegenerationQuality of LifeCataractQuestionnairesVision, OcularEyeUnited StatesHealth StatusPsychometricsReproducibility of ResultsEye Infections, FungalKeratoconusAcademies and InstitutesOphthalmologic Surgical ProceduresLasers, ExcimerNational Cancer Institute (U.S.)Eye MovementsInstitute of Medicine (U.S.)