staphyloma

1. (medicine) An abnormal protrusion of the uveal tissue through the eyeball.Examples: "Staphyloma is that disease of the eyeball, in which the cornea loses its natural transparency, rises above the level of the eye, and successively even projects beyond the eyelids […]"; "One of the forms of staphyloma, which is regarded as in no degree malignant, appears to be essentially composed of a collection of cysts; and, as far as I can judge from mere description, having never had an opportunity of examining a case of the kind myself, is connected with that form of adventitious serous membrane with which we are now occupied."; "Abscission of the staphyloma should never be performed where there is reason to suspect pre-existing disease of the choroid or retina, as deep haemorrhage is likely to follow the removal of the front of the globe, which may necessitate the rest of the eye."