The fate of experimental corneal grafts in herpetic keratitis and keratouveitis.

G'orneal graft opacification may occur in the course of ocular inflammation' 2 and graft rejection may develop concommitantly or stimulated by the inflammation/' The incidence of immune graft rejections during episodes of iritis or external infections is difficult to document, due to the fact that it is not possible at the present time to separate clinically one process from the other. In our experience the incidence of graft rejection in penetrating keratoplasties for herpetic keratitis is not greater than that found in other cases of keratoplasty with a similarly altered anatomic status (corneal pathology, vascularization, etc.). Other authors, however, feel that the rate of rejections in patients with herpetic keratitis is unquestionably very high. Whereas it is possible that the two processes may appear simultaneously or the immune reaction follow the herpetic reactivation, we have no laboratory test to determine