A chronic neoplasm-like inflammatory reaction, usually affecting the orbital tissues of both eyes, also known as orbital myositis. It usually occurs in middle age and is sometimes bilateral.
Causes of Orbital Granuloma
This is probably an immune mediated disorder of the orbit caused by a diffuse granulomatous infiltrate of lymphocytes and plasma cells in the orbital fat and external ocular muscles. The exact etiology or cause of the disease is not known.
Signs and Symptoms of Orbital Granuloma
Symptoms associated with orbital granuloma include the relatively rapid onset of orbital pain, There is usualy swelling or edema of the lids. The eyes may appear to be protruded, a condition referred to as proptosis. Due to the swelling and damage around the eye, the muscles may not function normally and there may be difficulties moving the eyes. This can lead to diplopia, or double vision, caused by the eyes looking at slightly different directions. The surface of the eye may appear swollen, a condition referred to as chemosis.
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Medical Content Last Updated on 07/12/2008
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