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[Presented to the Section on Ophthalmology, Otology and Laryngology, June, 1883.]
In looking over my records of cases for a number of years back, affections of the crystalline lens are found to sustain a relation of 9 per cent, and of these, a very large majority are opacities, idiopathic, and traumatic, mostly the former. In these I have been very much struck by the very large number which have taken place below, as compared with the upper peripheral portion of the lens, and still more surprised at seeing the opacity so often at the lower-inner margin. On first meeting with these, my practice was to inform those who were so affected that they had commencing cataracts, and I usually requested them to call on me from year to year that I might watch their progress toward ripeness, but after observing serving them for a number of years and seeing no
THOMPSON JL. QUESTIONS ON THE ETIOLOGY OF SOME FORMS OF LENTICULAR OPACITY.. JAMA. 1883;I(9):263–265. doi:10.1001/jama.1883.023900900070001b