title: Capsular block syndrome after cataract surgery: clinical analysis and classification.
abstract: OBJECTIVE
  To study the incidence of and risk factors for postoperative capsular block syndrome (CBS) and propose a new classification based on etiology.
  
  
  METHODS
  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 (>or=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.
authors.affiliation: Department of Ophthalmology, Kyungpook National University, School of Medicine, Daegu, Republic of Korea. okeye@knu.ac.kr
authors.forename: Hong Kyun
authors.initials: HK
authors.lastname: Kim
authors.forename: Jae Pil
authors.initials: JP
authors.lastname: Shin
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D015994:Incidence; D007429:Intraocular Pressure; D007903:Lens Capsule, Crystalline / Q000473:pathology*; D007905:Lens Diseases / Q000145:classification* / Q000209:etiology; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D018918:Phacoemulsification; D011183:Postoperative Complications; D011474:Prosthesis Design; D012189:Retrospective Studies; D012307:Risk Factors; D013577:Syndrome; D014065:Tonometry, Ocular