Leprosy

This is a very uncommon cause of iritis.  It is a disease which more commonly affects the eye in other ways.

Cause

Infection by the bacterium Mycobacterium leprae which is related to the tuberculosis bacterium.

Symptoms

Hard lumps on the skin
Areas of skin with less pigment and with less sensation
Loss of sensation
Thickening of facial skin

Eye problems in leprosy

Dry eyes
Brow loss
Nerve problems resulting in double vision
Corneal involvment
Nodular / diffuse inflamation of the sclera (scleritis)
Iritis (may be acute or chronic in onset)
Posterior uveitis
Iris atrophy
Cataract due to chronic iritis

Treatment

Antibiotics (dampsone, rifampcin) for years
Cataract extraction

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