title: Aplasia of the optic nerve.
abstract: A case of unilateral true aplasia of the optic nerve in an otherwise normal and healthy child is presented. Twenty-eight previously reported cases of aplasia have been reviewed and classified according to criteria which we have presented. Only six of these cases, including the present case, represent true aplasia, manifested by total blindness and complete absence of the optic disc and retinal vessels.
mesh_terms: D001766:Blindness / Q000151:congenital; D003937:Diagnosis, Differential; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D007223:Infant; D008850:Microphthalmos; D009900:Optic Nerve / Q000002:abnormalities*; D012171:Retinal Vessels / Q000002:abnormalities