Diseases of the Retina

The author has followed the rules of good pedagogy in that he has explained his basic terms, peristasis and prestasis, and then has used this concept to explain disturbances in circulation in an organ. He has then gone from the general to the specific in explaining disturbances in circulation within the retina, such as arteriosclerosis, occlusion of the central artery and its branches, and obstruction of the central vein. The newer concepts of essential hypertension as applied to the retina are particularly well explained and well illustrated with photographs. Fundus changes in diabetes are vividly portrayed with beautifully stained serial sections. In each chapter the author, after reviewing the recent theories, leads the reader to logical conclusions and stresses the fundamental pathological factor or factors in a disease; then he presents the clinical findings, the etiology, if known, and the treatment. He has done much to clarify the concepts of