AlbinismAlbinism, OculocutaneousMonophenol MonooxygenaseHermanski-Pudlak SyndromeNystagmus, PathologicHypopigmentationFolkloreMelanosomesNystagmus, CongenitalEye ColorMelanocytesPigmentationPiebaldismMelaninsPigmentation DisordersEvoked Potentials, VisualSkin PigmentationChediak-Higashi SyndromeMembrane Transport ProteinsPhotophobiaElectronystagmographyPontederiaceaeEye ProteinsGenetic Diseases, X-LinkedCharacidaeSocial AlienationPedigreeCatechol OxidaseCavesMutationChondrodysplasia PunctataHair ColorOptic ChiasmFovea CentralisMembrane GlycoproteinsPlatelet Storage Pool DeficiencyVisual AcuityGuineaPigment Epithelium of EyePuerto RicoIchthyosisPrader-Willi SyndromeKallmann SyndromeFundus OculiZimbabweReceptor, Melanocortin, Type 1Sunscreening AgentsMelanophoresGenes, RecessiveSunburnOxidoreductasesAdaptor Protein Complex beta SubunitsHemorrhagic DisordersIris DiseasesCeroidPhenotypeVisual PathwaysDNA Mutational Analysis