Lens Nucleus, CrystallineCataractLens Cortex, CrystallineLens, CrystallineCrystallinsPresbyopiaLensesContact LensesTwo-Dimensional Difference Gel Electrophoresisgamma-CrystallinsCell NucleusContact Lenses, HydrophilicLenses, IntraocularEye ProteinsLens Capsule, CrystallineAgingLens DiseasesContact Lenses, Extended-WearLens SubluxationContact Lens SolutionsLens Implantation, IntraocularContrast SensitivityPhotic StimulationNucleus AccumbensVisual FieldsVisual CortexThalamic NucleiSolitary NucleusNeuronsAccommodation, OcularNeural InhibitionRefraction, OcularPsychophysicsLighting