IOTM: A Congenital Vascular Variant of the Optic Nerve

Image of the Month (IOTM) is a collection of interesting clinical cases with high quality images for all relevant imaging modalities (ex: color fundus, OCT, OCTA, FAF, FA, En Face, Red-free, choroidal vasculography (CVG), anterior imaging) and other clinical results if relevant (ex: visual field plots). Each case is submitted by an eye care professional using one of Topcon’s industry-leading OCT devices.

Case background

Topcon TRC-50DX optic nerve photo (A) of a 7 year old girl’s right eye, showing a likely congenital vascular variant. A retinal artery can be seen exiting the optic nerve vertically into the posterior vitreous, forming a loop. Image B is a fundus photo that shows the patient’s normal vasculature, outside of the loop exiting the nerve. Patient’s exam is otherwise unremarkable.

—Adam Jacobson, MD and Nisha Dave, MD

Diagnosis: Congenital Vascular Variant of Optic Nerve

Captured with: Topcon TRC-50DX Mydriatic Retina Camera

TRC-50DX Images:

A. Optic nerve photo showing a congenital vascular variant of the optic nerve, forming a loop

B. Fundus photo that shows the patient’s normal vasculature, outside of the loop exiting the nerve

Captured by: Anna Eppenbrock, Ophthalmic Photographer

Images courtesy of Adam Jacobson, MD and Nisha Dave, MD, Pediatric Ophthalmology, New YorkMedical College.

  1. OCT Angiography is not available for sale in the US

The opinions, ideas, views and assumptions expressed are the author’s own and do not necessarily represent the views of Topcon, nor do they constitute advice from Topcon.

Mydriatic Retinal Camera


The TRC-50DX is a mydriatic retinal camera that incorporates digital-ready features to provide complete retinal imaging.

Recent Posts