关键词: 晶状体半脱位/外科学, 晶状体囊袋张力环, 手术后并发症, 玻璃体切除术

Abstract: Objective To evaluate the treatment efficacy of dislocated capsular tension rings (CTR). Design Retrospective cases series. Participants 11 cases (11 eyes) of complete CTR dislocation underwent surgical management were evaluated retrospectively in Beijing Tongren Hospital from March 2006 to February 2011. Methods All the 11 cases were given to vitrectomy and removed the dislocated capsular tension rings. Then procedures for repairing were pertormed including scleral suture fixation of the IOL haptics or the CTR through the complex (7 cases), iris fixation of the IOL (1 case), or silicone oil tamponade (3 cases), respectively. The follow-up period varied from 5 to 32 months. Main Outcome Measures Visual acuity, intraocular pressure, IOL location and surgical complications. Results The dislocated CTR was removed successfully in all 11 cases. Of the 11 patients, 8 had intraocular lens implantation, 3 had silicone oil tamponade. At the last follow-up after surgery, the visual acuity was 0.3 ~0.6 in 4 eyes, 0.1~0.2 in 4 eyes , and less than 0.1 in 2 eyes, one patient (1 eye) incapability for visual acuity assessent. On postoperative day 2 to 5, ocular hypertension occurred in 5 eyes (ranging from 25 to 51 mm Hg). The intraocular pressure returned to normal with medications in 4 eyes and transscleral cyclophotocoagulation in 1 eye, respectively. One eye involved hyphema in the immediately postoperation, and absorbed after using medications. There were no postoperative re-dislocation and decentration of the CTR-IOL complex or IOL. Conclusion Complete CTR dislocation may be effectively managed with a pars plana vitrectomy and a scleral suture fixation of the IOL or the CTR. (Ophthalmol CHN, 2012, 21: 82-85)

Key words: lens subluxation/surgery, capsular tension rings, postoperative complications, vitrectomy