Parts A and B courtesy of Zoë R. Williams, MD; part C courtesy of David A. DiLoreto Jr, MD, PhD.
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Neuro-Ophthalmology/Orbit
Choroidal effusion due to carotid-cavernous fistula. A, Slit-lamp photograph of left eye showing chemosis and arteriolarization of conjunctival vessels from a left carotid-cavernous fistula (arrows point to the shadow corresponding to choroidal effusion). B, Fundus photograph of left eye showing macular-involving choroidal effusion (arrows). C, B-scan demonstrating choroidal effusion (arrows).