Text-book of ophthalmology . gg^j^S^^B^^^^S^I^^^^^. Fig. 97.—Ulcus Serpens. Magnified 10 X 1. The ulcer is large, is still covered with pus in every part, and has a yellow border a a\, surroundingit on all sides. This border is elevated because the anterior lamellae of the cornea are raised by thesubjacent infiltration. Layers that are infiltrated with pus form the floor of the ulcer. The layersthat succeed these deeper down show, to be sure, no infiltration, but neither do they show any livingcorneal corpuscles, so that the cornea here is necrotic in its entire thickness. At the margin of the
Text-book of ophthalmology . gg^j^S^^B^^^^S^I^^^^^. Fig. 97.—Ulcus Serpens. Magnified 10 X 1. The ulcer is large, is still covered with pus in every part, and has a yellow border a a\, surroundingit on all sides. This border is elevated because the anterior lamellae of the cornea are raised by thesubjacent infiltration. Layers that are infiltrated with pus form the floor of the ulcer. The layersthat succeed these deeper down show, to be sure, no infiltration, but neither do they show any livingcorneal corpuscles, so that the cornea here is necrotic in its entire thickness. At the margin of thecornea there is marked infiltration beneath the limbus b 01, and under this lie living corneal lamellaepresenting a moderate infiltration which only towards the most posterior layers c ci, becomes moremarked. A posterior abscess is wanting in this case. In many cases of ulcus serpens the infiltration of the margin soon disappears atsome portion of its circumference, so that the ulcer advances in one direction progressive portion of the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecteye, booksubjectophth
