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The subject of the pathology of cataract is too extensive to be profitably considered in the time at our disposal for the purpose; I shall, therefore, confine myself to one or two phases of the influences which determine opacity of the crystalline lens.
The common use of the phrase "senile cataract" argues a general consent in the view that advanced age has some fixed relation to the condition. That it can not be a necessary, or the only causative factor is demonstrated by the large number of young persons that we see with opacity of the crystalline lens, and by the other fact that many reach even an advanced age without suffering from such opacity.
Of recent years much attention has been directed to certain other probable or possible factors. Among these there can be little doubt but that eye-strain exerts an important influence. Many times where there had been
JACKSON E. INFLUENCE OF AGE IN CAUSING OPACITY OF THE CRYSTALLINE LENS, AND THE PROPER USE OF THE WORD "CATARACT.". JAMA. 1898;XXXI(13):698–701. doi:10.1001/jama.1898.92450130020002f
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