Posterior vortex vein and congenital glaucoma in a patient with trisomy 13 syndrome.

A 4-month-old infant boy presented with a mild manifestation of trisomy 13 syndrome. The severe ocular findings usually associated with this syndrome were not seen. Rather, the patient had bilateral congenital glaucoma with glaucomatous optic disk cupping and, in one eye, a posterior vortex vein. Such findings are unusual in the trisomy 13 syndrome. The posterior vortex vein is a particularly unusual finding previously occurring in myopic eyes.