Central Retinal Vein Occlusion as a Rare Ocular Complication of Ulcerative Colitis: A Case Report

Inflammatory bowel diseases (IBDs) have numerous extraintestinal manifestations, and ocular manifestations are one of the most common. Central retinal vein occlusion (CRVO) is a rare and serious extraintestinal manifestation. This case report presents a 53-year-old female patient with steroid-dependent ulcerative colitis who arrived at the emergency eye clinic with a 1-month history of blurred vision in her left eye. An initial fundus examination revealed a massive CRVO. Treatment with an intravitreal application of antivascular endothelial growth factor therapy with bevacizumab was started 7 months after the diagnosis. After 5 years of follow-up, no satisfactory treatment success was achieved. CRVO is a rare but very serious extraintestinal manifestation of IBD. An interdisciplinary approach is crucial for early diagnosis and the early start of treatment for a better outcome.