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To the Editor:
—In his letter Major H. Saul Sugar disagrees with some of my conclusions and objects to some of the interpretations I advanced as a result of my experimental work. Hence I consider it necessary to make certain explanations and to clarify my point of view.Dr. Sugar states that my experiments on animals "cannot be applied to the condition designated as acute glaucoma in man because in man there is an anatomic predisposition, namely, shallowness of the anterior chamber, "which is always present, [while] in all animal eyes studied the chambers were normal." From the beginning I clearly stated in my paper that, unfortunately, there is as yet no means of reproducing experimentally the symptom complex designated as acute primary glaucoma in man. The injection of serum or pure or defibrinated blood into the anterior chamber is, in my opinion, the more physiologic approach to the experimental