<prompt> Most common ophthalmological manifestations of the X-linked form of Alpo syndrome is:Dot and flake retinopathyAnterior lenticonusPosterior polymorphous corneal dystrophyPosterior lenticonus  <response>: The typical ophthalmological manifestations of the X-linked form of AS are 1. Dot-and-fleck retinopathy which occur in about 85 of affected adult males And 2. Anterior lenticonus which occur in about v25 Other additional ocular abnormalities are: 1. Recurrent corneal epithelial erosions 2. Posterior polymorphous corneal dystrophy 3. Posterior lenticonus 4. Macular holes 5. Retinal detachment The ocular manifestations presents after renal abnormalities manifest The dot-and-fleck retinopathy is not associated visual impairment or night blindness. Ref: Dan Med Bull 2009;56:105-52 