Capsular block syndrome after cataract surgery: Clinical analysis and classification
Accepted 1 November 2007.
Purpose
To study the incidence of and risk factors for postoperative capsular block syndrome (CBS) and propose a new classification based on etiology.
Setting
Department of Ophthalmology, Kyungpook National University Hospital, Daegu, Republic of Korea.
Methods
Charts of 1100 eyes of 990 patients who had phacoemulsification and posterior chamber intraocular lens (PC IOL) implantation between January 2003 and June 2006 were retrospectively reviewed. Demographic data, axial length (AL), type of PC IOL implanted, and intraoperative ophthalmic viscosurgical devices (OVDs) were recorded. The cases of postoperative CBS were collected and the characteristic clinical findings evaluated.
Results
There were 8 cases (7 patients) of postoperative CBS (incidence 0.73%). Longer AL (≥25.0 mm) was a risk factor for postoperative CBS (P = .008; odds ratio [OR], 5.75, 95% confidence interval [CI], 1.353-24.413). The PC IOL with 4 haptics (Akreos Adapt, Bausch & Lomb) was also associated with an increased incidence of postoperative CBS (P = .001; OR, 7.388; 95% CI, 1.751-31.168). The CBS was classified as noncellular, inflammatory, or fibrotic according to the clinical characteristics.
Conclusions
Although postoperative CBS was a rare complication after cataract surgery, AL and PC IOL design had a significant influence on the incidence. Evaluation of clinical characteristics showed 3 distinct types of CBS.
From the Department of Ophthalmology, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
Corresponding author: Hong Kyun Kim, Department of Ophthalmology, Kyungpook National University Hospital, #50, Samduk–2Ga, Jung-Gu, Daegu 700-721, South Korea.
Neither author has a financial or proprietary interest in any material or method mentioned.
Presented at the ASCRS Symposium on Cataract, IOL and Refractive Surgery, San Francisco, California, USA, March 2006.
ABSTRACT