Visually Impaired PersonsVision DisordersVision, LowVision TestsColor Vision DefectsBlindnessVisual AcuityEye DiseasesRefractive ErrorsSickness Impact ProfileVision, OcularOphthalmologyActivities of Daily LivingEducationPsychometricsQuestionnairesQuality of LifeBrain DiseasesPrevalenceMorbidityCross-Sectional StudiesReproducibility of ResultsVision, BinocularNight VisionVision, MonocularMild Cognitive ImpairmentCognition DisordersColor Perception TestsColor PerceptionContrast SensitivityNeuropsychological TestsVisual PerceptionEyeglassesVisual FieldsSensory AidsMemory DisordersPhotic StimulationSensory ThresholdsAmblyopiaRetinal Cone Photoreceptor CellsVision DisparityPsychophysicsPattern Recognition, VisualSpace PerceptionMesopic VisionPsychomotor PerformanceStrabismusCataractMacular DegenerationFovea CentralisHearing DisordersDepth PerceptionOpsinsRetinaCognitionTime FactorsMemoryLightingAgingAlzheimer DiseaseHearing LossDiscrimination (Psychology)BrainMagnetic Resonance ImagingAmnesiaAnalysis of VariancePresbyopiaVisual PathwaysRetinal PigmentsDementiaOrientationElectroretinographyReadingSensory DeprivationForm PerceptionSeverity of Illness IndexMaze LearningScotomaLanguage DisordersVisual CortexMotion PerceptionGlareEye MovementsRod OpsinsAdaptation, OcularAttentionCataract ExtractionFixation, OcularLearning DisordersReaction TimeFollow-Up StudiesOptometryBlindness, CorticalDisability EvaluationVision, EntopticLightDisease Models, AnimalRetinal DiseasesRetinoscopyLanguage Development Disorders