Excluding injuries and tumors, there are probably more eyes enucleated among elderly persons for the relief of absolute glaucoma secondary to obstruction in the central vein of the retina than for any other reason. The disease increases with advancing years, a fact which is of common experience. Pain and inflammation play a great rôle in this type of glaucoma. A similar type of painful glaucoma may ensue as a complication in any case of detachment of the retina. In both instances operations for the relief of glaucoma seldom prove successful. After an operation the tension may rise higher than it was before, and the pain may be greater. In glaucoma following obstruction in the main vein, an examination reveals a characteristic picture: an anterior chamber of normal depth, often containing blood, a small pupil and an iris with newly formed vessels on its surface, all of which are