Simultaneous inflammation of the choroid layer and the retina of the eye, usually caused by infection (like toxoplasmosis or cytomegalovirus) or autoimmune conditions.
From chorioid + retina + -itis (inflammation), combining terms for two back-of-eye structures that often become inflamed together.
Chorioidoretinitis from toxoplasmosis is one of the most common causes of vision loss in people with untreated HIV—it's a disease where understanding one infection leads to preventing another!
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