The commoner diseases of the eye : how to detect and how to treat them . ,cF Interstitial Keratitis. some instances is so marked as to give areas ofgreater or less extent a pinkish or yellowish hue. <«<» COMMONER DISEASES OF THE EVE There are known as salmon patches. Thesenew vessels, running in uniform, parallel rows,are derived from the deep conjunctival vesselsand while in some cases are only recognizedunder oblique illumination or with a cornealloup, at others are clearly defined and can berecognized without difficulty. The empty tubesof the vessels can, years afterward, be distin-.
The commoner diseases of the eye : how to detect and how to treat them . ,cF Interstitial Keratitis. some instances is so marked as to give areas ofgreater or less extent a pinkish or yellowish hue. <«<» COMMONER DISEASES OF THE EVE There are known as salmon patches. Thesenew vessels, running in uniform, parallel rows,are derived from the deep conjunctival vesselsand while in some cases are only recognizedunder oblique illumination or with a cornealloup, at others are clearly defined and can berecognized without difficulty. The empty tubesof the vessels can, years afterward, be distin-. Bloodvessels in Various Corneal Affections. (a) Superficial blood vessels in pannus. (b) Deep lying blood vessels in a recent case of in- terstitial keratitis. (c) Deep lying blood vessels in an old case of inter- stitial keratitis. guished with a dilated pupil, good illuminationand the corneal loup (when no other cornealsign of the disease remains) as branched linesrunning in the dee]) layers of the cornea. Theyare known, from the observer who first describesthem, as Hirschberg vessels. The opaque exudates may be absorbed com-pletely in a few weeks or months, or they may COMMONER DISEASES OF THE CORNEA 221 remain (especially over the pupillary area) fora much longer time, with more or less per-manent impairment of vision. Sometimes the
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