Ophthalmic manifestations in mentally retarded children are as follows   Refractive errors Cong anophthalmos Cong ptosis Microphthalmos Cong cataract Cong glaucoma  Nystagmus Corneal dystrophy Sclerocornea Cong corneal opacities Hurlers disorder Peters corneal anomaly Ched Limbal dermoid Keratoconus Coloboma of iris Coloboma of disc Optic atrophy Share your views.