Retinal microincarceration with penetrating diathermy in the management of giant retinal tears.

A technique for repair of giant retinal breaks with detachment involves the performance of lensectomy-sector iridectomy, vitrectomy, and scleral buckling behind the equator. Total fluid-gas exchange is performed while the patient is turned to the prone position on a rotating table. Penetrating diathermy is used to fix the retina and to create retinal microincarceration while air is simultaneously injected into the eye.

Resection of uveal melanocytoma: clinicopathological correlation.

Four patients had pigmented lesions in the anterior uveal tract and choroid which presented clinically as malignant melanomas. All the lesions were successfully removed by local excision. Histopathological studies showed the tumours to be melanocytomas, indicating that enucleation or irradiation would have been contraindicated.

Surgical correction of lens dislocation in children.

We treated nontraumatic ectopia lentis with the irrigation and aspiration method in 30 children and the Keeler/SITE instrument in three. Preoperative visual acuities were 6/21 (20/70) or worse in all patients; postoperatively, visual acuities improved in 29 of the 30 eyes and were 6/18 (20/60) or better in 24 (80%). Amblyopia was the major preoperative and postoperative complication.

Healing of trabeculectomies in rabbits.

We studied the healing of trabeculectomies in rabbits with photographs, fluorescein filtration and histological sections. Initially all except 1 developed proven filtration. However, vigorous fibroblastic proliferation (and collagen production) from the subconjunctiva, uvea and sclera combined to close off the fistula by day 14.