Posterior continuous curvilinear capsulorhexis and postoperative inflammation

Abstract

Purpose: To evaluate the influence of posterior continuous curvilinear capsulorhexis (PCCC) on inflammation after phacoemulsification and implantation of a foldable silicone intraocular lens (IOL) in the capsular bag.

Setting: St. Erik's Eye Hospital, Stockholm, Sweden.

Methods: Fifty patients were enrolled in this prospective, randomized study. Eyes with diabetes mellitus, glaucoma, uveitis, exfoliation syndrome, other previous ocular diseases, or an axial length greater than 26.0 mm were excluded. One group comprised 25 eyes of 25 patients (median age 76 years) in which phacoemulsification and implantation of a silicone IOL in the capsular bag were performed. The other group consisted of 25 eyes of 25 patients (median age 77 years) who received the same surgical procedure in addition to PCCC. The aqueous protein concentration was measured using a laser flare meter (FC 500, Kowa Co.) preoperatively and 1 day, 1 week, and 1 and 3 months after surgery.

Results: Surgical trauma significantly increased aqueous flare values 1 day, 1 week, and 1 month after surgery in both groups (P < .05). Three months postoperatively, flare values in both groups were not different from preoperative values. No difference between the 2 groups was found in flare intensity measurements or in best corrected visual acuity before and after uneventful surgery. The incidence of postoperative clinical cystoid macular edema was 8% (2 eyes) in the control group and 4% (1 eye) in the group with PCCC.

Conclusion: Postoperative flare intensity after phacoemulsification with PCCC and implantation of a foldable silicone IOL was not significantly different than postoperative flare measurements in a control group.