"This monograph from the group at John Hopkins that leads the world in this field will be an essential reference source for many years to come."--Xerophthalmia Club Bulletin"A mass of up-to-date and pertinent information in a coherent, interesting, and easily assimiliable form. The strength of this work lies in its in-depth reviews of three major topics: The consequences of vitamin A deficiency, assessment of vitamin A status and prevention of deficiency, and mechanisms of the activity of vitamin A....The supurb color photographs of xerophalmia could well serve to train health care workers."--The New England Journal ofMedicine"This comprehensive scholarly volume chronicles this fascinating ocular and nutritional saga....The binding, cover, and printing quality are superior, in keeping with Oxford Medical Publications' tradition....The scientific value of this work cannot be overstated....The authors and their contributors are to be congratulated for this exceptional scientific literary achievement...The definitive reference for all opththalmologists, epidemiologists, public healthplanners, eye health care workers, and nutritionists who are seriously concerned about vitamin A deficiency as a cause of human ocular morbidity, blindness, and mortality."--American Journal ofOphthalmology"Most useful to nutrition professionals who are involved in developing and implementing community-based programs to combat vitamin A defiency....Clinicians and other health professionals should also find this to be a valuable resource text."--Journal of the American Dietetic Association"The authors of this outstanding book are productive collaborators who have contributed a great deal to out knowledge of the epidemiology of vitamin A deficiency, to its detection, and most importantly, to successful intervention....This excellent book deserves attention not only by researchers interested in vitamin A deficiency but also by those who would like to learn which steps should be taken to alleviate and prevent the deleterious effects of anynutritional deficiency."--The American Journal of Clinical Nutrition"The scientific value of this work cannot be overstated. The authors and their contributors are to be congradulated for this exceptional scientific literary achievement...Definitive reference for all ophthalmologists, epidemiologists, public health planners, eye health care workers, and nutritionists."--American Journal of Ophthalmology