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Alfred Sommer
Researcher at Johns Hopkins University
Publications - 366
Citations - 32936
Alfred Sommer is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Xerophthalmia & Vitamin A deficiency. The author has an hindex of 86, co-authored 364 publications receiving 31556 citations. Previous affiliations of Alfred Sommer include Centers for Disease Control and Prevention & Johns Hopkins University School of Medicine.
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Journal ArticleDOI
Nutritional Factors in Corneal Xerophthalmia and Keratomalacia
Alfred Sommer,Muhilal +1 more
TL;DR: Analysis suggests that interaction between vitamin A and protein status determines cellular adequacy of vitamin A metabolism, which virtually collapses in keratomalacia.
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Treatment of corneal xerophthalmia with topical retinoic acid.
TL;DR: Topical retinoic acid was associated with more rapid healing of corneal lesions in a substantial proportion of cases and with moderate to severe conjunctival injection and increasedCorneal vascularization and scarring.
Journal ArticleDOI
Clinical characteristics of vitamin A responsive and nonresponsive Bitot's spots
TL;DR: Pigmentation and wrinkling were not useful diagnostic criteria and lesions isolated to the nasal corneoscleral limbus suggested a different diagnosis, and at least some cases of nonresponsive conjunctival xerosis and Bitot's spots were probably sequelae of past vitamin A deficiency.
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The Epidemiology of Vitamin A Deficiency and Xerophthalmia
James M. Tielsch,Alfred Sommer +1 more
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High-resolution photography of the retinal nerve fiber layer
TL;DR: Compared with the standard red-free photographic technique, a 560-nm short-pass cut-off filter, used with extended-range, high-resolution, extremely fine-grain film (Kodak No. 2415 Technical Pan film), considerably enhanced the ability to resolve nerve fiber bundles.