Capsular tension ring use in a patient with congenital coloboma of the lens.

Cataract surgery was performed in a 63-year-old man with bilateral coloboma of the lens. There was no traumatic history, but the patient had lower zonule deficiency and zonular weakness in both eyes, leading us to suspect congenital coloboma of the lens. In the first eye having cataract surgery, it was impossible to rotate the cataractous lens and place the intraocular lens (IOL) centrally in the capsular bag because the lens capsule was not round. The second eye had similar problems, and capsular tension ring implantation improved cataract lens rotation and phacodonesis, enabling central IOL implantation in the capsular bag. The visual acuity recovered to 20/20 in both eyes. Capsular tension ring implantation can facilitate cataract surgery in coloboma of the lens, even in long-term and continuous lens capsule deformity.