Muscle HypotoniaNystagmus, PathologicNystagmus, CongenitalNystagmus, PhysiologicNystagmus, OptokineticElectronystagmographyMusclesElectrooculographyMuscle ProteinsMuscle, SkeletalEye MovementsAlbinism, OcularMuscle, SmoothCaloric TestsVertigoAbnormalities, MultipleMuscle Fibers, SkeletalMuscle, Smooth, VascularIntellectual DisabilitySyndromeOculomotor MusclesMuscle DevelopmentMuscle ContractionVestibular NeuronitisVestibular Function TestsFaciesCerebellar DiseasesPrader-Willi SyndromeSemicircular CanalsStrabismusGenetic Diseases, X-LinkedOcular Motility DisordersMuscle FatigueReflex, Vestibulo-OcularMuscle Fibers, Fast-TwitchMuscle DenervationVestibule, LabyrinthNeck MusclesAtaxiaMuscle Fibers, Slow-TwitchMyopathies, Structural, CongenitalChromosomes, Human, XVestibular DiseasesPedigreeMyopathies, NemalineMyocytes, Smooth MuscleMuscular DiseasesMitochondria, MuscleVisual AcuityMuscle HypertoniaCerebellar AtaxiaDevelopmental DisabilitiesAlbinism, OculocutaneousMicrocephalyMental Retardation, X-LinkedOtolithic MembraneMuscle, StriatedFixation, OcularMuscle SpindlesElectromyographyMuscle RelaxationPhenotypeRespiratory MusclesMuscle WeaknessPapillary MusclesConsanguinityTorsion AbnormalityMyopathy, Central CoreInfant, NewbornVestibular NucleiChromosome Deletion