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ESTHER M. PATCH, A.M.

Arch Ophthal. 1943;29(1):69-84.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Cataracts in the tiger salamander, Amblystoma tigrinum, were first observed by me¹ in the summer of 1933 in larvae raised from Illinois eggs and used in a study of the nutritional needs of this rapidly growing larval form for the formation of bone and blood. Cortical opacities (fig. 1 A) with a thin subcapsular space developed in larvae fed for a month or more a semisynthetic ration containing a high level of purified casein and a smaller amount of powdered milk. The disease did not appear in animals of the same lot fed the same ration with added cystine or in those (fig. 1 B) fed pulverized beef muscle as a source of protein in a semisynthetic diet with different combinations of the calcifying vitamin and minerals. An early stage of the opacities was seen rarely (fig. 1 C) as striations from the equator to the anterior pole. The . . . [Full Text PDF of this Article]

Author Affiliations
HADDONFIELD, N. J.

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