iritis

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Related to Acute iritis: anterior uveitis

iritis

(īrī`tĭs), inflammation of the iris, the pigmented portion of the eyeeye,
organ of vision and light perception. In humans the eye is of the camera type, with an iris diaphragm and variable focusing, or accommodation. Other types of eye are the simple eye, found in many invertebrates, and the compound eye, found in insects and many other
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 surrounding the pupil. The condition is sometimes associated with diabetesdiabetes
or diabetes mellitus
, chronic disorder of glucose (sugar) metabolism caused by inadequate production or use of insulin, a hormone produced in specialized cells (beta cells in the islets of Langerhans) in the pancreas that allows the body to use and store
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, with rheumatic diseases such as rheumatoid arthritisarthritis,
painful inflammation of a joint or joints of the body, usually producing heat and redness. There are many kinds of arthritis. In its various forms, arthritis disables more people than any other chronic disorder.
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, and with infections such as syphilissyphilis
, contagious sexually transmitted disease caused by the spirochete Treponema pallidum (described by Fritz Schaudinn and Erich Hoffmann in 1905). Syphilis was not widely recognized until an epidemic in Europe at the end of the 15th cent.
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. Iritis may cause severe pain, a swollen, discolored iris, abnormal sensitivity to light, and blurred vision. If not quickly treated, it may result in impaired vision or blindness. Iritis is treated with antibioticsantibiotic,
any of a variety of substances, usually obtained from microorganisms, that inhibit the growth of or destroy certain other microorganisms. Types of Antibiotics
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 or other drugs to eliminate infection, atropineatropine
, alkaloid drug derived from belladonna and other plants of the family Solanaceae (nightshade family). Available either as the tincture or extract of belladonna, or as the pure substance atropine sulfate, it is a depressant of the parasympathetic nervous system.
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 to dilate the pupil and prevent scarring, and sometimes steroidssteroids,
class of lipids having a particular molecular ring structure called the cyclopentanoperhydro-phenanthrene ring system. Steroids differ from one another in the structure of various side chains and additional rings. Steroids are common in both plants and animals.
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 to reduce inflammation.

Iritis

 

an inflammation of the iris of the eye. Since the iris and the ciliary body of the eye are supplied with blood from the same system, an isolated inflammation of the iris is rarely observed; as a rule, iritis is accompanied by inflammation of the ciliary body (see IRIDOCYCLITIS). The term “iritis” is used when inflammation of the iris predominates.

iritis

[ə′rīd·əs]
(medicine)
Inflammation of the iris.
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