Related Experiment Video
Updated: Aug 17, 2026

The Rodent Model of Nonarteritic Anterior Ischemic Optic Neuropathy (rNAION)
Published on: November 20, 2016
Central retinal vein occlusion associated with drusen of the optic disc
S Chern1, L E Magargal, W H Annesley
1Wills Eye Hospital Retina Vascular Unit, Thomas Jefferson University, Philadelphia, PA 19107.
Abstract:
A 43-year-old man had gradual visual changes OD. Funduscopic examination revealed central retinal vein occlusion OD. Complete ocular examination revealed bilateral drusen of the optic disc, confirmed by b-scan ultrasonography. Complete systemic evaluation showed no other etiology for the central retinal vein occlusion. Over a ten-year follow-up, in the absence of systemic disease or other local ocular anomalies, we concluded that central retinal vein occlusion can arise from external compression secondary to drusen of the optic disc.
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