A new operation for glaucoma.

Instruments.-Separator, conjunctival forceps and scissors, Lungard or von Graefe knife, iris spatula 2 mm. wide, Hess iris forceps, iris scissors (de Weckers), and scleral scissors. Instead of the ordinary iris spatula I use a special one provided with a small guard projecting for 1 mm. and situated 10 mm. from its tip (Figure). The purpose of this modification is to prevent the spatula from entering the eye too far, thus avoiding any damage to the lens or to Descemet's membrane. The spatula provides support during one of the steps of the operation.