Keratitis

ker-at-i' -tis. Inflammation of the cornea. K., Asthenic. See A'., Phlyctenular. K., Astigmatic, a form of keratitis said to be due to uncorrected astigmatism. K. bullosa, the formation of large or small blebs upon the cornea of an eye, the seat of iridocyclitis, interstitial keratitis, or glaucoma. K., Circumscribed, limited to a part of the cornea. K. contagiosa, a contagious, suppurative variety occurring in cattle. K., Cretaceous, a calcareous infiltration of the corneal epithelium. K., Deep. See A" pro fund a. K., Diffuse. See A'., Interstitial. K., Dotted. See K. punctata. K., Fascicular, a form of phlyctenular keratitis in which one of the ulcers, originally formed at the margin of the cornea, creeps acro its surface, followed by a leash of distended blood-ve els. K., Granular, due to conjunctival granulations; pannus. K., Herpetic, characterized by the formation of small vesicles on the cornea, which ulcerate and then heal. Relapses are common. K., Hypopyon, an ulcerative form accompanied by the formation of pus in the anterior chamber. K., Inherited. A", K., cornea Interstitial, a form keratitis which the entire is invested with ofa diffuse hazine , almost completely hiding the iris. The surface of the cornea presents a ground-gla appearance. Later, from ciliary injection, blood-ve els form in the superficial layers of the cornea, and produce a dull-red color, the "salmon of Hutch in son. The entire cornea may become cherry red. The disease is most frequent between the ages of five and fifteen, and occurs in syphilitic individuals. K. maculosa. See K. siiperficialis punctata. K., Marginal, a form of phlyctenular keratitis in which the phlyctenules are arranged around the margin of the cornea. K. marginal is, a rare form of keratitis that must not be confounded with the marginal form of phlyctenular keratitis. It occurs in elderly people, and consists of a yellowish-gray zone of opacity immediately joining the sclera, which pushes into the clear cornea and occupies about one-half the i circumference. K. neuroparalytica, keratitis lowing paralysis of the fifth nerve. It does not i usually occur in partial paralysis of the nerve. Its cause is lo of trophic influence, aided by mechanical i irritation and drying of the cornea. K. of Reapers, a traumatic form due to irritation of the comeae of reapers by beards of grain. K.