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.

Treatment of large von Hippel tumors by eye wall resection.

Two large angiomas (greater than 3 disc diameters) in two patients with von Hippel disease were removed successfully by eye wall resection. The resection of angioma in the first case resulted in improved visual acuity from counting fingers to 20/140, decreased exudates, and cessation of preoperative diffuse retinal capillary leakage observed by fluorescein angiography. The resection in the second case with pre-existing local tractional retinal detachment was tolerated well.

Talc retinopathy in primates: a model of ischemic retinopathy. II. A histopathologic study.

Experiment talc retinopathy was produced in four adult rhesus monkeys by biweekly intravenous injections of talc for 31/2 to ten months and was studied by retinal vascular flat preparations and by light microscopy. Talc particles were lodged in the walls of the precapillary arterioles and capillaries, producing focal occlusion of retinal and choroidal capillaries. The pericyte-endothelial cell ratio was 1:0.

A teaching mirror for patient's observations during indirect ophthalmoscopy.

We developed a technique by which patients can observe the central fundus of their own contralateral eye during indirect ophthalmoscopy. This is achieved by adding an angulated mirror to the side of the presently available teaching mirror of the indirect ophthalmoscope. Self-indirect ophthalmoscopy is also feasible when the light source is kept stable.