May help
...Although anterior uveitis is the most common form of intraocular inflammation, intermediate, posterior and pan uveitis have an increased incidence of visual morbidity. These are characterized by inflammation of choroid, retina, retinal vessels, vitreous, and ciliary body either in isolation or as a part of pan uveitis. For this group the term posterior segment intraocular inflammation (PSII) has been adopted [8]. PSII or posterior segment uveitis (PSU) can be either infectious or immune-mediated in origin. Immune-mediated PSII accounts for 22% to 38% of all cases of uveitis seen in tertiary care centers [9-12]. The term covers a range of clinical phenotypes, such as idiopathic intermediate uveitis and birdshot retinopathy, but all share the same underlying immune etiology and are immuno-phenotypically similar [13]....
Взято здесь (если не видели) http://www.molvis.org/molvis/v13/a42/
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