=After-treatment.= The patient should be kept in bed for a week, and during the first four days should not be allowed to raise the head from the pillow. After that time the eye not operated upon may be uncovered; eserine should have been instilled into it before the operation and at subsequent dressings to prevent the possible onset of glaucoma owing to the dilatation of the pupil which follows the application of the bandage to the eye. It is not necessary to use any mydriatic or myotic for the eye which has been operated upon. [Illustration: FIG. 114. IRIDECTOMY FOR GLAUCOMA. Showing the position in which the iris should be grasped with forceps.] [Illustration: FIG. 115. IRIDECTOMY FOR GLAUCOMA. Showing the irido-dialysis produced before division.] =Complications.= These may be immediate or remote. =Immediate.= 1. In passing a Graefe’s knife into the anterior chamber to make the section, care must be taken that the cutting edge is directed upwards. If by accident it should be inserted with the cutting edge directed downwards the knife should be withdrawn and the operation postponed for a day or two until the anterior chamber has re-formed. Care must be taken that the cutting edge is kept on the same plane as the upper edge of the back of the knife, otherwise the incision is liable to pass further back than is intended. 2. _Splitting the cornea._ The anterior chamber often being little more than a potential space, the knife may be passed between the lamellæ of the cornea and may not enter the anterior chamber at all. The indication that the knife-point is not in the anterior chamber is that there is no diminished resistance, such as is usually felt when the knife enters the chamber; if its point be slightly depressed, the cornea will be seen to dimple in over the position of it, showing that the point is not free in the anterior chamber. 3. _Locking of the knife._ This is due to the fact that the puncture and counter-puncture are not made in the same plane, the knife being twisted. It is much more liable to occur if a knife be chosen with a blade which is not sufficiently stiff. As a rule the blade can be made to cut out, but failing this, the knife should be withdrawn sufficiently to allow a fresh counter-puncture to be made, or else withdrawn altogether and the operation postponed. [Illustration: FIG. 116. IRIDECTOMY FOR GLAUCOMA. Division of the iris to form the inner angle of the coloboma. The iris is pulled out as far as possible before removal.]