best vitelliform macular dystrophy, vitelliform stage, classic egg-yolk lesion,

best disease vitelliform 1 gene macular bestrophin retina bestrophinopathy dystrophy disk disorder eye fundus epithelium layering of lipofuscin fovea fundoscopy hand drawing illustration investigation genetic drawn macula medical hereditary ocular ophthalmologist ophthalmology ophthalmoscopy optic cup organ patient retinal retinoscopy vessel vision pigment stage 2 bvmd egg yolk lesion