AIM: To evaluate the efficacy of surgery in eyes with vitreous hemorrhage secondary to central retinal vein occlusion complicated with primary hypertension.

METHODS: Totally 83 eyes of 83 consecutive primary hypertension patients with vitreous hemorrhage underwent vitrectomy were included. In 28 eyes of 28 patients, vitreous hemorrhage was caused by central retinal vein occlusion. All patients were followed up for 9-36mo, meanly 22.4mo. Main outcome measures included the best corrected visual acuity, intraoperative and postoperative complications,and the data were statistically analyzed and compared.

RESULTS: The incidence of vitreous hemorrhage in primary hypertension complicated with central retinal vein occlusion was 33.7%. The best corrected visual acuity increased in 24 eyes(86%), unchanged in 4 eyes(14%), there was a significant statistical difference between pre-operation and post-operation(P<0.05). There were 5 eyes(18%)with macular edema after the surgery.There were no serious complications in and after the surgery in all 28 eyes.

CONCLUSION: Vitrectomy is a safe and effective treatment for vitreous hemorrhage in primary hypertension complicated with central retinal vein occlusion.