Causes and treatment for postoperative capsular block syndrome after cataract surgery

Abstract

Objective To explore the clinical characteristics,the etiology,the regimen and the prevention of postoperative capsular block syndrome (CBS) after phacoemulsification and intraocular lens implantation. Methods Fifteen patients (15 eyes) who developed postoperative capsular block syndrome from July 2009 to May 2011 were analyzed retrospectively.The clinical characteristics and follow-up results of different treatments were analyzed. Results There were 11 patients (11 eyes)with early postoperative CBS and 4 patients (4 eyes) with late postoperative CBS.The capsulorhexis diameter of the anterior capsule was less than 5mm.No special treatment was necessary on 3 patients (3 eyes) due to natural recovery,Nd:YAG laser was performed on 7 patients (7 eyes) and anterior chamber lavage performed on 5 patients (5 eyes). Conclusions Incomplete removal of the viscoelastic material during cataract surgery and a capsular capsulorhexis diameter that is too small are the two risk factors for postoperative CBS; anterior chamber lavage and Nd:YAG laser are both effective treatments for postoperative CBS. Key words: Capsular block syndrome; Phacoemulsification; Continuous circular capsulorhexis; Intraocular lens