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PPV may be alternative treatment for ischemic CRVO

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Patients with ischemic central retinal vein occlusion may reduce the risk of developing neovascular glaucoma by undergoing pars plana vitrectomy, mild panretinal photocoagulation and intraocular gas injection, according to a small pilot study.

Tom Williamson and colleagues with London’s St. Thomas’s Hospital performed PPV, mild panretinal photocoagulation and intraocular perfluoropropane gas injection on eight eyes of seven patients with ischemic central retinal vein occlusion. No patients developed neovascular glaucoma. Visual recovery was evident in patients with and without neurotomy, but some patients had cataract extraction to allow visualization for PPV. Optical coherence tomography showed macular edema in three patients with neurotomy and all patients with PPV alone.

The study is published in the September issue of British Journal of Ophthalmology.