Keratic precipitate (KP) is an inflammatory cellular deposit seen on corneal endothelium. Acute KPs are white and round in shape whereas old KPs are faded and irregular in shape. Mutton-fat KPs are large in shape and are greasy-white in color and are formed from macrophages and epithelioid cell.Mutton fat Kps are due to granulomatous iridocyclitis. Another variant called red KPs may be seen in hemorrhagic uveitis.
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Keratic precipitate Wikipedia(Text) CC BY-SA