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The first edition of this work, which appeared in 1937, contained 211 pages and 68 illustrations. Although the present edition is over half again as large, there is no evidence of "padding." The text has both brevity and lucidity, attributes which occur only too rarely in the same book. Since much of the pioneer work on orthoptic training was done at the Royal Westminster Ophthalmic Hospital, it is appropriate that two members of the staff of this hospital should have produced what is, in my opinion, a desirable addition to ophthalmic literature.
After outlining the management of an orthoptic clinic and describing the instruments used (synoptophore, cheiroscope, myoscope, stereoscopes, diploscope and Remy separator), the authors discuss the optical treatment of squint and the use of occlusion. Chapters are devoted to the examination of the patient, the etiology of strabismus, abnormal retinal correspondence, suppression, fusion and stereoscopic vision. The principles of