This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
This is the book we have been waiting for; it has been sorely needed for a long time. This new edition is almost 75% larger than the fourth, published in 1953. It is truly a new edition, being considerably rearranged and rewritten to a large degree. There are 14 new chapter headings and many of the previous ones have been markedly expanded, notably "Orthoptic Instruments," from 51 pages to 75 and "Abnormal Retinal Correspondence," from 22 pages to 54.
From the point of view of the student orthoptist, possibly the most important of the new chapters are those on anatomy, basic physiology, refraction, and the development of binocular vision and squint. Here for the first time the student will have a complete textbook giving her the background that is absolutely essential for the modern broader concept of orthoptics which is succinctly stated in the opening sentence of the introduction: "The