Peripheral iridectomy in the surgery for uveitis complicated cataract

Abstract

Objective To evaluate the of clinical significance of peripheral iridectomy in the surgery for uveitis complicated cataract. Methods This is a clinical case-control study. Forty patients (56 eyes) of uveitis complicated cataract with iris posterior synechiae range >270 ° were randomly divided into two groups. Twenty patients (30 eyes) in group A received cataract phacoemulsification and intraocular lens implantation combined with peripheral iridectomy. And 20 cases (26 eyes) in group B received phacoemulsification and intraocular lens implantation only. The followe-up time was 6~12 months. The postoperative visual acuity, intraocular pressure and complications were observed. Results At one week after operation, the visual acuity improved in 28 eyes (93.33%) in group A, and 25 eyes (96.54%) in group B. The difference in postoperative vision between the two groups was not statistically significant (χ2=1.5163, P=0.267). At the last follow-up, the patients whose visual acuity was batter than 0.3 accounted for 40.00% in group A and 30.77% in group B, and the difference was statistically significant (χ2=9.9715, P=0.049). During postoperative follow-up period, the intraocular pressure (IOP) of all patients in group A was in the normal range, and it was increased in 12 eyes (46.15%) in group B, the difference was statistically significant (χ2=12.7176, P=0.0017). Conclusion For the uveitis complicated cataract with wide range posterior synechia of iris, phacoemulsification and intraocular lens implantation combined with peripheral iridectomy plays an important role in preventing the high intraocular pressure caused by adhesion of IOL and iris. Key words: Surgery, cataract, complicated; Uveitis; Iridectomy, peripheral