. A treatise on the diseases of the eye. glued to the perforationby the effusion of lymph. As soon as the opening is stopped by this plug oflymph, the aqueous humor will re-accumulate, and, if the adhesion betweenthe iris and cornea is but slight, it will readily yield to, and be torn awayby, the force of the aqueous humor and the action of the muscles of the , if the layer of lymph at the bottom of the ulcer is thin and weak, theforce of the intra-ocular pressure may rupture it, or may cause it to bulgeforward, and thus necessitate a repetition of the paracentesis. The lattershould al
. A treatise on the diseases of the eye. glued to the perforationby the effusion of lymph. As soon as the opening is stopped by this plug oflymph, the aqueous humor will re-accumulate, and, if the adhesion betweenthe iris and cornea is but slight, it will readily yield to, and be torn awayby, the force of the aqueous humor and the action of the muscles of the , if the layer of lymph at the bottom of the ulcer is thin and weak, theforce of the intra-ocular pressure may rupture it, or may cause it to bulgeforward, and thus necessitate a repetition of the paracentesis. The lattershould also be repeated, perhaps even several times, if we notice that theprocess of repair becomes arrested, and that the ulcer again shows a tendencyto increase in depth. After the operation, a compress bandage should beapplied. If the ulcer is extensive, and if hypopyon or iritis coexist, thepuncture should be made with a broad needle at the edge of the cornea[Fig. 8-i], or an iridectomy should be substituted. The indications which [Fig. After Erichsen.] should guide us in selecting between these two operations have already beenconsidered in the article upon suppurative corneitis. In the indolent hypopyon ulcer (ulcus serpens of Saeniisch), describedat p. 228, a vast number of remedies have been tried, of which the mostsuccessful have been warm fomentations, paracentesis, and iridectomy,together with tonics and a generous diet. It must, however, be confessedthat such success has been but limited, more especially when the ulcer wasextensive, rapidly spreading, and accompanied by a considerable has lately devised the following operation for the purpose of di-viding the base of the ulcer, and maintaining a diminution of the intra-ocular tension for some length of time, so that the progress of the diseasemay be arrested, and the process of repair accelerated. His results have ULCERS OF THE CORNEA TREATMENT. 233 been very favorable, for out of thirty-five cases in w
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