Chorioretinitis

Book
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan.
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Excerpt

Chorioretinitis is a type of uveitis involving the posterior segment of the eye, which includes inflammation of the choroid and the retina of the eye. Though the term uveitis means inflammation of the uveal tract (iris, ciliary body, and choroid), it can involve the adjacent structures like the retina, retinal vessels, vitreous, optic nerve head, and sclera. The Standardization of Uveitis Nomenclature (SUN) consensus conference workshop classified uveitis into anterior (iritis, iridocyclitis, anterior cyclitis), intermediate (pars planitis, posterior cyclitis, hyalitis), posterior uveitis (choroiditis, chorioretinitis, retinochoroiditis, retinitis, and neuroretinitis) and panuveitis based on the anatomical location. Uveitis also classifies as granulomatous or nongranulomatous, acute, chronic or recurrent, insidious, or sudden, based on criteria like appearance, duration, or type of onset. Chorioretinitis is a type of posterior uveitis. The choroid is the vascular layer of the eye, which lies between the retina and the sclera. Since the choroid is responsible for the vascular support of the outer layers of the retina, inflammation of these layers can lead to vision-threatening complications.

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