Hydrostatic Approach to Posterior Chamber

at operation, rather than rely on spontaneous leakage (if this ever occurs) or absorption in the few days immediately following operation. A view of the fundus on the day after operation bears out this supposition in most cases, and in some it would be difficult to tell, except for the area of coagulation, that there had been a detachment present at all, owing to the entire absence of folds or "ripples" in the retina. Another possible result of leaving residual fluid behind, even wlhen the coagulated area is flat, is the " floating up " of this area of retina by some unavoidable change of position of the patient's head in the 48 hours immediately after operation. My thanks are due to those honorary surgeons whose patients I have treated by this technique and to Dr. Browning for his helpful interest. The instrument was made for me by Messrs. John Bell and Croyden.