Retinoschisis associated with optic nerve pits. 1988.

Stereoscopic transparencies studied with magnification and projection suggest that the retinal elevation that communicates with optic pits is frequently a schisislike separation of the internal layers of retina. Thirteen of 15 eyes with optic pits and maculopathy fit the schisis pattern. Separation of the outer layers of the retina is a secondary phenomenon that starts in the macula.

Minor surgery for the repair of retinal detachment emanating from retinoschisis.

Purpose: To propose a mechanism for the development of the outer layer retinal tears that occur with retinoschisis and the detachment emanating from it that is consistent with the limited extent of the detachment and the response to binocular occlusion and local buckles.

Methods: A consecutive series of 24 patients with retinoschisis, collected over 15 years, was analysed. Seven patients developed a symptomatic retinal detachment emanating from breaks in the outer layers of retinoschisis.

A 40 degrees gaze down position for pneumatic displacement of submacular hemorrhage: clinical application and results.

Purpose: To test the validity of the geometric conclusion that 40 degrees gaze down is optimal for pneumatic displacement of a subretinal hemorrhage (SRH) in the macula.

Methods: Nine consecutive patients with SRH in the macula had an intravitreal injection of perfluorocarbon gas sufficient to cover the macula when the patient gazed down 40 degrees below the horizontal. They were asked to maintain the gaze down position for 20 minutes every hour while awake.