Risk Factors for Posterior Capsule Rupture and

Purpose: To determine the rate and risk factors of vitreous loss during phacoemulsi-fication in patients with cataracts operated by ophthalmology residents and fellows at Labbafinejad Medical Center. Methods: This prospective descriptive study included consecutive patients with cataracts undergoing phacoemulsification over a one year period. All patients were operated under local or general anesthesia using the divide and conquer technique. Preoperatively, all patients underwent a complete ocular examination including measurement of visual acuity, slitlamp biomicroscopy, intraocular pressure mea-surement, and dilated funduscopy. Main outcome measures included the rate of pos-terior capsular rupture and vitreous loss as well as associated risk factors such as surgical experience, ocular and systemic conditions, and type and severity of the cataract. Results: Overall, 767 eyes of 767 patients with mean age of 63.7±10.3 (range, 25-91) years were operated. The overall rate of vitreous loss was 7.9 % which was 5-fold greater in the hands of residents as compared to fellows. Among different factors, older age