Incidence of Posterior Capsule Rupture During Phacoemulsification Cataract Surgery Among Patients Treated With Intravitreal Bevacizumab Injections.

Abstract

To assess whether intravitreal bevacizumab injections increase the risk of posterior capsular rupture during phacoemulsification cataract surgery in diabetic patients. A retrospective study that included diabetic patients who underwent phacoemulsification cataract surgery at King Hussein Medical Center of the Jordanian Royal Medical Services during a one-year period from January 2023 until January 2024. Patients were categorized into four groups. The first group did not receive an intravitreal bevacizumab injection; the second group received only one injection; the third group received two injections; and the fourth group received three or more injections. Results from the four groups were compared with a control group for patients who underwent phacoemulsification surgery and were not known to have diabetes mellitus and did not receive previous intravitreal injections. All injections were received within a period of one year before the time of phacoemulsification surgery. Inclusion criteria for the study groups included diabetic patients with a history of diabetes of more than 10 years with the presence of diabetic retinopathy. Exclusion criteria included patients who received intravitreal injections other than bevacizumab, previous intraocular surgery or trauma, and the presence of ocular pathology that led to an increased risk of posterior capsular rupture. The incidence of posterior capsular rupture was compared among these groups. A p-value was used to assess statistical significance and was considered to be statistically significant if ≤0.05. The number of patients in the control group (group 0) was 1440 patients with a mean age of 64.9, and in the study groups were 1306 patients. Group 1 included 244 patients (18.7%) with a mean age of 62.4 years, compared to 306 patients (23.4%) in group 2 with a mean age of 66.1 years, 352 patients (27%) in group 3 with a mean age of 64.2 years, and 404 patients (30.9%) in group 4 with a mean age of 63.1 years. Posterior capsular rupture occurred more significantly in patients with group 4. It occurred in 21 patients, representing 5.2% of them, compared to four patients (1.6%) of group 1, six patients (2%) of group 2, and eight patients (2.3%) of group 3, while in the control group, the number of patients with posterior capsular rupture was 20 (1.4%). Intravitreal bevacizumab in diabetic patients is considered a risk factor for posterior capsular rupture in phacoemulsification cataract surgery in patients receiving more than three injections.