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This book of 134 pages, 90 illustrations and 15 tables is the 59th special publication of the "Klinische Monatsblätter für Augenheilkunde." The translated subtitle is "Contributions to the Optics of Eye and Spectacles," indicating that the author, a physicist, has brought together the many contributions he has made to this area of ophthalmology.
The book starts with a discussion of correcting ametropia by means of conventional and contact lenses, and the influence of these on the effectivity of accommodation. The optical characteristics of the conventional correction of astigmatism are treated in great detail, especially the distortions of the perceived image resulting from the different magnifications in the principal meridians of the cylindrical correction. The emphasis is on monocular effects; the resulting binocular spatial distortions receive scant attention; the work of Ames and Ogle is not mentioned.
A chapter on corrected ophthalmic lenses sketches the history from the very beginnings of