Refraction, OcularEmmetropiaHyperopiaRetinoscopyMyopiaAstigmatismRefractive ErrorsEyeEyeglassesBiometryAccommodation, OcularMydriaticsVisual AcuityCorneal TopographyCyclopentolateAnisometropiaLenses, IntraocularPeripheral NervesOptometryCorneaAxial Length, EyeLens Implantation, IntraocularPhotorefractive KeratectomyAnterior ChamberLasers, ExcimerRefractometryVision TestsKeratomileusis, Laser In SituPupilAberrometryInterferometryPresbyopiaPeripheral Nervous SystemRefractive Surgical ProceduresPeripheral Nervous System DiseasesCataract ExtractionLensesLens, CrystallineAphakiaStrabismusPhacoemulsificationAmblyopiaPeripheral Vascular DiseasesVitreous BodyTropicamideDiagnostic Techniques, OphthalmologicalSingaporeOptics and PhotonicsCorneal Wavefront AberrationVision, LowVision ScreeningEsotropiaSensory DeprivationCataractLeukocytes, Mononuclear