BOOK REVIEWS in the field of ophthalmology in relation to the multitudinous manifestations of ophthal mic disease, not only by their appearance but also by their fundamental mechanisms and etiologic backgrounds. T. E. Sanders.
PUBLICATIONS, AMERICAN FOUNDATION FOR THE BLIND, New York, New York. Esti mated Prevalence of Blindness in the United States. By Ralph G. Hurlin. 15 pages. Price: 25 cents. Accurate statistics on blindness, periodi cally compiled, indicate the value of measures taken to prevent blindness and to help in the programs of service for the afflicted. The Section on Ophthalmology, A.M.A., in 1934 defined total blindness as lack of light per ception ; economic blindness as acuity of less than 0.1 Snellen, or an equal disability in the visual field. The older age group now ac counts for at least two thirds of existing blindness. Blindness is also consistently more prevalent in the nonwhite population. Utah has the lowest rate, 1.4 per 1,000; New Mex ico, the highest, with a rate of 3.4 per 1,000.
Normal Growth and Development of Chil dren with Visual Handicaps. By Robert F. Mikell, M.D. 14 pages. Price: 25 cents. The developing and learning processes in blind and seeing children are not comparable. The problems encountered are more difficult for the blind and their solution requires much more time. Current Research in Work for the Blind. By Nathaniel J. Raskin and Marian F. Weiler. 34 pages. Price: 50 cents. The increase in the number of preschool blind children due to the incidence of retrolental fibroplasia has been a spur to research and may throw light on the importance of parental attitudes in the psychologic develop ment of the blind. Research on the education of the blind, however, appears to be now at a low level.
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Hobbies of Blind Adults. By Charles G. Rit ter. 52 pages. Price: 45 cents. Any activity which is pursued for fun rather than for income may be regarded as a hobby. Blindness should cause few changes except in the techniques of doing things. Many blind make no use of braille but employ tape recorders or dictation machines. Those who. learn touch typing have no trouble in accustoming themselves to typing without looking. For embroidery, weaving may make a good substitute; ceramics for china painting; the · phonograph for the camera. Some blind people enjoy going to art galleries with friends who describe pictures. Indeed, there have been art collectors who continued to buy pictures after becoming blind. James E. Lebensohn. By Sylvio Abreu Fialho, M.D. Rio de Janeiro, Brazil, Empresa Grafica Ouvidor S.A., 1953. Paper covered, 402 pages. Prepared as thesis for the Chair of Clinical Ophthalmology of the Medical Faculty of the University of Brazil.
TOXOPLASMOSE OCULAR.
This exhaustive monograph reviews the world literature on ocular toxoplasmosis and presents a valuable chapter on the author's personal observations and investigations. Among the outstanding of the 10 wellwritten chapters are those dealing with the clinical picture of the disease, its ocular mani festations, and its histopathology. In agree ment with most writers, the author divides toxoplasmosis into three main forms: the congenital, the latent (found in adults as the transmitters of the parasite), and the post natal (seen in both children and adults). The 63 illustrations include black and white retinographic studies, roentgenograms, and photomicrographs. The volume closes with the author's conclusions and a complete bib liography of 217 references. This valuable book brings the reader upto-date in a field of ophthalmology in which