The clinical effect of Nd: YAG laser anterior capsulotomy for the treatment of capsular bag contraction syndrome

Abstract

Objective To observe the clinical effect of Nd: YAG laser anterior capsulotomy for the treatment of capsular bag contraction syndrome(CCS) after intraocular lens implantation. Methods Eighty-five eyes of 85 cases of CCS were treated with Nd: YAG laser anterior capsulotomy. The minimum diameter of the anterior capsule opening, best corrected visual acuity(BCVA), corneal endothelial count and intraocular pressure (IOP) were observed 1 day preoperation and 1 week postoperation. The follow-up time was 6 months. Results The contractile ring of anterior capsule opening was opened and the contraction of capsule bag was released after Nd: YAG laser anterior capsulotomy. No serious complication was observed. The number of the eyes with BCVA≥0.3 was increased from preoperative 43 eyes to postoperative 52 eyes. The minimum diameter of the anterior capsule opening increased significantly, form (1.91±1.52)mm to (4.33±1.92)mm (t=7.45, P=0.00). No significant change in corneal endothelial cell counts after treatment was observed, (2304±202)/mm2vs (2281±234)/mm2 (t=1.03, P=0.15). IOP did not change significantly 1week postoperation compared to 1day preoperation, (15.53±4.34)mmHg vs (15.76±4.49) mmHg (t=0.62, P=0.27). No IOL shift was observed during 6 months follow-up. Conclusion Nd: YAG laser anterior capsulotomy is an effective treatment for CCS. No serious complication was observed after early surgical treatment. Key words: Cataract; Capsule contraction syndrome; Laser anterior capsulotomy; Intraocular pressure