We agree with Dr. Yeoh that older patients with larger denser nuclei are at increased risk for CBS. He has reported sudden pupillary constriction ("pupil snap") during hydrodissection as a sign of hy-drorupture of the posterior lens capsule. We reviewed the video recordings of the cases we reported and observed constriction of the pupil in both cases. The horizontal pupil diameter constricted by a maximum of 20%, and while this is less than the 30% constriction reported by Yeoh, the finding does support the clinical observation that abrupt pupil constriction during hydrodissection should alert the surgeon to the possibility of hydrorupture of the posterior capsule.
展开▼
