球結膜水腫

Chemosis is the swelling (or edema) of the conjunctiva (the lining of the white of the eye). The term derives from , meaning , due to the swollen conjunctiva resembling it, and , meaning . The swelling is due to the oozing of exudate from abnormally permeable capillaries. In general, chemosis is a nonspecific sign of eye irritation. The outer surface covering appears to have fluid in it. The conjunctiva becomes swollen and gelatinous in appearance. Often, the eye area swells so much that the eyes become difficult or impossible to close fully. Sometimes, it may also appear as if the iris has mo