Medical Definition of NEPHRECTOMY. : the surgical removal of a kidney.â neÂ·phrecÂ·toÂ·mize \-ËmÄ«z\ transitive verb.edical Definition of NEPHRECTOMY. : the surgical removal of a kidney.
Scleritis is an uncommon disease and is differentiated from episcleritis, which is a more common ocular condition. In episcleritis, only the superficial tissue between the white of the eye (sclera) and the blood vessel-filled covering (conjunctiva) is inflamed. Scleritis is an inflammation of the white of the eye. 2  It is serious eye disease which is often associated with underlying autoimmune disorders. 3  Prompt diagnosis and treatment is essential in preventing permanent vision loss.
Eye Health. By Troy Bedinghaus, OD - Reviewed by a board-certified physician. Scleritis is an inflammation of the sclera, the white outer covering of the eye. The sclera is whitish in color and is made of collagen. Blood vessels travel through and on top of the sclera and can be involved in scleritis. Scleritis can be destructive to the eye, causing intense pain and loss of vision for some people.