This refers to a low-grade inflammatory response,which is seen in young adults. It affects both eyes in up to 80% of cases, although the severity can be asymmetrical. There is minimal evidence of anterior uveitis and the patient complains of floating spots in front of the vision. Inspection of the fundus reveals vitreous opacities and careful inspection of the peripheral retina shows whitish exudates in the overlying vitreous. A mild-to-moderate peripheral retinal phlebitis can occur. The condition runs a chronic course and occasionally can be complicated by cataract, cystoid macular oedema and tractional retinal detachment. The cause is unknown in the majority of cases, although there is a known association with sarcoidosis.
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