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January 1938, Vol 19, No. 1 >
ARTICLE | January 1938

THE CATARACTOUS LENS:  EXPERIMENTAL AND CLINICAL STUDIES

I. S. TASSMAN, M.D.
Arch Ophthalmol. 1938;19(1):114-124. doi:10.1001/archopht.1938.00850130126015.
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After the earlier investigations of the lens proteins by Mörner, Jess and others, the study of the chemical structure of the lens and analysis of the fractions and their properties continued to be of great interest to others in attempting to explain the development of senile cataract.

Among the later studies of the chemical structure of the lens were those made by Krause,1 who found that the crystallins corresponded to albumins, with the percentages of arginine, histidine, lysine and tyrosine present somewhat higher than those obtained by Jess. He also found a percentage of cysteine in the normal lens lower than the percentages reported by earlier investigators. Krause also studied the molecular weight of the lens proteins.

The weight and the nitrogen and water content of the crystalline lens were investigated by P. W. Salit2 and J. Kubik.3 Salit found that the water content of the

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BMJ 2010;341:c5893-c1494.
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