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Article
September 1937

SEASONAL VARIATIONS IN THE LIPID CONTENT OF THE CRYSTALLINE LENS

Author Affiliations

IOWA CITY
From the Department of Ophthalmology, College of Medicine, State University of Iowa.

Arch Ophthalmol. 1937;18(3):403-410. doi:10.1001/archopht.1937.00850090071008
Abstract

A general survey of a series of biochemical studies of human cataractous and sclerosed lenses1 revealed distinct variations in the total lipid content at different times of the year. Such variations coincided with the four seasons. On the average, the total lipid content was low in the spring and autumn and high in the summer and winter.

Analyses of 128 lenses for determination of the total lipid content were carried out over a period of fourteen months, i. e., from March 1935 to April 1936, inclusive.

The patients from whom the lenses were extracted came from different parts of Iowa, and the operations were performed at such intervals that not a single week passed without a few lenses being analyzed. The smallest number of lenses analyzed during the course of one month (April 1935) was 11; the largest number was 23 (May and November 1935; table 1). Owing to

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