Scleritis (inflammation of sclera) is a strong indication of the underlying medical problem. It can be due to fungal, viral or parasitic infection, trauma, exposure to chemicals, poisonous gases or due to post-surgical complications.
Mast cells are granulated cells typically found in connective tissue. These cells mediate immune responses to foreign particles. In particular, they release large amounts of histamine and enzymes in response to antigen recognition.
4. Interferons-These are defence proteins that are produced by body cells that are infected by a virus. They travel to nearby cells and prevent the spread of the virus. 5. Inflammation-Cells that have been infected produce chemical called histamine.