• A case-control study of 225 patients with branch retinal vein occlusion (BRVO) and 100 age-matched controls was conducted to assess potential clinical risk factors for BRVO. Male gender, hypertension, and hyperopia were significantly more prevalent in patients with BRVO. There was no significant association with race, diabetes, or chronic open-angle glaucoma.
Johnston RL, Brucker AJ, Steinmann W, Hoffman ME, Holmes JH. Risk Factors of Branch Retinal Vein Occlusion. Arch Ophthalmol. 1985;103(12):1831-1832. doi:10.1001/archopht.1985.01050120065021