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system and therefore may present some problems for American ophthalmologists who have not yet made the transition. There are few examples of vergence calculations with simple lenses that the beginner needs to confirm his under standing of these concepts. There are no references or bibliography for the stu dent who is interested in pursuing topics in greater depth. Overall the authors have written a con cise introduction to clinical optics that is easy to read.
Ophthalmic Ultrasonography. Proceed ings of the Ninth SIDUO Congress. Ed ited by Jeffrey S. Hillman and Malcolm M. LeMay. The Hague, Dr. W. Junk Publishers, 1984. 502 pages, index, il lustrated. $90. Reviewed by RONALD L. G R E E N
Los Angeles,
California
SIDUO (Societas International pro Diagnostica Ultrasonica in Ophthalmologia), the international society for ophthal mic ultrasound, is dedicated to the ex change of ideas, research findings, and advancements in the technology of diag nostic ultrasound. The Ninth SIDUO congress was held in Leeds, England, in August 1980. This book is a compilation of papers presented at that congress. It is well organized and covers a broad range of important topics in ophthalmic ultra sonography. The first section of the book is on intraocular tumors. Most of the papers in this section demonstrate the use of stand ardized echography and B-scan methods for the evaluation and diagnosis of mela nomas, metastatic tumors, hemangiomas, and retinoblastomas. The second section deals with vitreoretinal pathology and shows the use of ultrasound in the evaluation of retinal
NOVEMBER, 1984
detachments, diabetic vitreous hemor rhages, and trauma and in the previtrectomized eye. Particularly noteworthy are papers on the use of standardized echo graphy for the evaluation of disciform lesions and B-scan for the diagnosis of ciliary body detachment. Other papers discuss the use of ultrasound in the diag nosis of scleritis, choroidal hemorrhage, and intraocular cysticercosis. A major portion of the book concerns biometry, with papers discussing its use in intraocular lens implantation as well as its clinical applications. The implantation section describes methods for more accu rately measuring axial eye lengths to de termine the power required for the intra ocular lens. New instrumentation for these procedures is described. Clinical biometry has achieved new importance in ophthalmology, and one of its most im portant uses is in the diagnosis and follow-up of patients with congenital glaucoma. Two papers included in this volume present results of studies regard ing biometry in congenital glaucoma. The next major section of the book is concerned with orbital disorders. In re cent years, because of the development of the computed tomographic scan, the value of ultrasound in the orbit has not been sufficiently appreciated. Several ex cellent papers in this section, again utiliz ing standardized echography, clearly show the valuable contributions of ultra sound in orbital evaluations. These in clude papers on the differential diagnosis of vascular tumors, myositis, and mucoceles. Other papers demonstrate the use of contact B-scans for evaluation of orbital varices and optic nerve disorders. The last section deals with the physics of echography and with new techniques for examining the eye and for imaging color structures. Although there are a few papers on ophthalmic ultrasound in various jour nals, nowhere is there a compilation of the most recent research and develop-
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BOOK REVIEWS
ments in modern ultrasonography as there is in this volume. Also, the various echographic techniques presently in use are well represented. The papers are generally of high quality and very instruc tive. I would highly recommend this book to anyone in the field or with an interest in ophthalmic ultrasonography.
SYMPOSIA Current Topics in Eye Research. Volume 4. Edited by Jose A. Zadunaisky and Hugh Davson. Orlando, Academic
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Press, Inc., 1984. 227 pages, index, illustrated. $73 This volume contains four reviews by experts.
REIF-LEHRER, L.: Glutamate metabolism in the retina. A larger perspective KAUFMAN, P. L. : Aqueous humor outflow MASTERS, B. R. : Noninvasive corneal redox fluorometry FISCHBARG, J., AND LIM, J. J.: Fluid and electro lyte transports across corneal endothelium