On the Arcus Senilis, or Fatty Degeneration of the Cornea (Classic Reprint) - Softcover

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Excerpt from On the Arcus Senilis, or Fatty Degeneration of the Cornea

Canary Ifles, this tache périphérique fe prononce de bonne heure.

The arcus is not accompanied, in its gradual for mation, by rednefs, nor pain, and indeed, is unattended, in the Whole progrefs of its development, by any in convenience Vifion is not impeded by it, and, in its earlier fiages, it is concealed from obfervation by the eyelids. Infiances, however, are on record where the fight has been materially encroached on thus, Dud dell1 fays I have feen fome that have had only a little/tranfparency oppofite the pupil and could fee only right forward. W are2 remarks that the opa city fometimes extends fo far forwards as to leave only very little more than the aperture of the pupil quite clear and Mackmurdo3 mentions the cafe of a tall, and,rather {tout man, about fifty - five years of age, who, when he firft applied to me, had the arcus two or three times as broad as we ufually fee it, but, his vifion was not interfered with. By de grees, the inner edge approached nearer, and, nearer to the pupil, until it left him a fmall fpace, only, for Vifion.

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