Unilateral optic nerve aplasia associated with rudimental retinal vasculature.

Optic nerve aplasia (ONA) is a rare congenital malformation characterized by absence of optic disk, optic nerve, retinal ganglion cells, and central retina vessels. It is frequently associated with other ocular and central nervous system anomalies. In this paper, we describe a case of ONA associated with microphthalmos and a rudimental retinal vasculature in an otherwise healthy infant.