Capsular block syndrome (CBS) or capsular bag distension syndrome has been
described after cataract removal with in-the-bag placement of a posterior c
hamber intraocular lens in the presence of an anterior continuous curviline
ar capsulorhexis. Features of CBS include shallowing of the anterior chambe
r and an unexpected myopic overrefraction; occasionally, there is a persist
ent uveitis. The patient may be mistakenly diagnosed with pupil block glauc
oma or endophthalmitis. We report 9 cases of CBS and their initial diagnose
s and management. In 1 case, the capsular bag distention and anterior chamb
er shallowing are illustrated by ultrasound biomicroscopy. J Cataract Refra
ct Surg 2000; 26:462-467 (C) 2000 ASCRS and ESCRS.