Slope of sides of corneal grafts and recipient beds.

IF a corneal graft is not properly coapted to its bed, a series of complications may ensue. These have been summarized by Barraquer (1950). A cause of this lack of coaptation is that the sides of the graft or of the bed may not be vertical, and that if sloping they may not slope in similar directions. A series of simple tests were therefore carried out to determine: (a) The direction of the sides of the graft and how to influence it by the method of cutting the graft. (b) The direction of the sides of the bed and how to influence it by the method of preparing the bed.