Histological and clinical study of eyes with true exfoliation and a double-ring sign on the anterior lens capsule.

Objective: To investigate the histological and clinical relation between eyes with true exfoliation (TEX) and a double-ring sign (DRS).

Study Design: Retrospective clinical case study.

Participants: Twenty-four eyes of 22 patients who underwent cataract surgery at Kochi Medical School Hospital and its affiliated hospitals during the period from April 1994 to September 2007.