AlbinismAlbinism, OculocutaneousMonophenol MonooxygenaseHermanski-Pudlak SyndromeNystagmus, PathologicHypopigmentationFolkloreMelanosomesNystagmus, CongenitalEye ColorMelanocytesPigmentationPiebaldismMelaninsPigmentation DisordersEvoked Potentials, VisualSkin PigmentationChediak-Higashi SyndromeChild WelfareMembrane Transport ProteinsPhotophobiaDisabled ChildrenElectronystagmographyChild BehaviorPontederiaceaeEye ProteinsGenetic Diseases, X-LinkedCharacidaeSocial AlienationPedigreeCatechol OxidaseCavesMutationChondrodysplasia PunctataHair ColorOptic ChiasmFovea CentralisMembrane GlycoproteinsVisual AcuityPlatelet Storage Pool DeficiencyGuineaPuerto RicoPigment Epithelium of EyePrader-Willi SyndromeIchthyosisFundus OculiKallmann SyndromeChild Health ServicesZimbabweReceptor, Melanocortin, Type 1Sunscreening AgentsChild RearingMelanophoresGenes, RecessiveSunburnOxidoreductasesChild, InstitutionalizedAdaptor Protein Complex beta SubunitsHemorrhagic DisordersChild Behavior DisordersChild PsychologyPhenotypeIris DiseasesVisual PathwaysCeroidChild of Impaired ParentsDNA Mutational AnalysisStrabismus