Optic AtrophyOptic Atrophy, Autosomal DominantOptic Atrophies, HereditaryDiabetes Mellitus, Type 2Diabetes MellitusAtrophyOptic NerveDiabetes Mellitus, Type 1Wolfram SyndromeOptic DiskDiabetes ComplicationsGTP PhosphohydrolasesOptic Atrophy, Hereditary, LeberDiabetes Mellitus, ExperimentalMuscular AtrophyBlood GlucoseDiabetes, GestationalOptic NeuritisHypoglycemic AgentsHereditary Sensory and Motor NeuropathyOptic ChiasmInsulinPedigreeRetinal Ganglion CellsHemoglobin A, GlycosylatedRisk FactorsDiabetes InsipidusPapilledemaOptic Nerve InjuriesMuscular Atrophy, SpinalVision DisordersVisual AcuityDNA, MitochondrialHyperglycemiaBlindnessEye DiseasesRetinaGlucose Tolerance TestDiabetic NephropathiesDiabetic AngiopathiesDiabetic NeuropathiesOnchocerciasis, OcularOptic Neuropathy, IschemicSyndromeDiabetic RetinopathyOptic Lobe, NonmammalianMultiple System AtrophyGenes, RecessiveInsulin ResistanceGlutaratesMitochondrial DiseasesOptic FlowPrevalenceMutationMitochondrial ProteinsObesityMyoclonic Cerebellar DyssynergiaIslets of LangerhansMitochondrial DynamicsVision, LowPregnancy in DiabeticsCerebellar AtaxiaStreptozocinCase-Control StudiesMagnetic Resonance ImagingFollow-Up StudiesTime FactorsDiabetic KetoacidosisSpinal Muscular Atrophies of ChildhoodElectroretinographyMutation, MissenseDisease Models, AnimalProspective StudiesMitochondriaNerve FibersBody Mass IndexOptics and PhotonicsFundus OculiColor Vision DefectsMicrocephalyVisual FieldsHypertensionCohort StudiesDNA Mutational AnalysisRetrospective StudiesOptic Nerve GliomaPrediabetic StateGlucose IntoleranceEvoked Potentials, VisualHypoglycemiaCardiovascular DiseasesConsanguinitySulfonylurea CompoundsGlucoseIncidenceInsulin-Secreting CellsGenotypePhenotypeGenetic HeterogeneityMetformin