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Article
January 1941

SEASONAL VARIATIONS IN LIPID CONTENT OF CRYSTALLINE LENSESWITH SPECIAL REFERENCE TO THE INFLUENCE OF SUNSHINE AND HUMIDITY

Arch Ophthalmol. 1941;25(1):32-35. doi:10.1001/archopht.1941.00870070046005
Abstract

In a previous study1 on the seasonal variations in the lipid content of crystalline lenses, there appeared during the course of a year two low and two high levels in the lipid content. The low levels coincided with the spring and the fall and the high levels with the summer and the winter. The variations were more pronounced on the basis of per cent than on the basis of absolute amount, indicating simultaneous but inverse changes in some other substance, apparently water. Certain seasonal changes were noted also in the cholesterol and phospholipid contents of two other groups of similar lenses, the values for cholesterol being especially high during the winter months and those for phospholipids during the summer months. By summation of the two lipid fractions, a curve was obtained that closely resembled that for the total lipid. At that time no study was made regarding the precise

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