Night BlindnessEye Diseases, HereditaryGenetic Diseases, X-LinkedElectroretinographyDark AdaptationMyopiaAlbinism, OcularRetinal Bipolar CellsRetinal Rod Photoreceptor CellsTRPM Cation ChannelsBlindnessX ChromosomeRetinaPedigreeRetinal Cone Photoreceptor CellsCalcium Channels, L-TypeVisual AcuityMutationGenetic LinkageGenes, RecessiveRetinal DiseasesDNA Mutational AnalysisXerophthalmiaProteoglycansEye ProteinsReceptors, Metabotropic GlutamateMutation, MissenseArrestinPhotic StimulationRhodopsinMolecular Sequence DataVitamin A Deficiency