Purpose: To report a patient with unilateral vision loss and neovascular glaucoma after attempted superior ophthalmic vein embolization in the treatment of a carotid-cavernous sinus fistula.
Methods: A 69-year-old man with a history of a left dural carotid-cavernous sinus fistula underwent attempted treatment with superior ophthalmic vein embolization. The procedure was unsuccessful, and the left superior ophthalmic vein was ligated.
Results: Uncontrolled left proptosis and intraocular pressure necessitated urgent orbital decompression with severe vision loss and neovascular glaucoma.
Conclusion: Superior ophthalmic vein embolization in the management of carotid-cavernous fistula may be associated with vision-threatening complications.