Viscocanalostomy for refractory glaucoma secondary to intravitreal triamcinolone acetonide injection.

Intravitreal injection of triamcinolone acetonide (IVTA) has gained widespread use in the treatment of a variety of neovascular and inflammatory intraocular conditions, including proliferative diabetic retinopathy, chronic cystoid macular edema, and chronic uveitis. Intraocular pressure (IOP) greater than 21 mm Hg occurs in approximately 42% of eyes following IVTA. Most of these patients are successfully treated with medical therapy, while a small percentage (1%) require glaucoma surgery for pressure management. We report a series of 3 patients who developed refractory glaucoma secondary to IVTA. All 3 were successfully treated with viscocanalostomy.