Keratic precipitates Diagnosis includes dilated fundus examination to rule out posterior uveitis, which presents with white spots across the retina along with retinitis and vasculitis. Laboratory testing is usually used to diagnose specific underlying diseases, including rheumatologic tests (e.g. antinuclear antibody, rheumatoid factor) and serology for infectious diseases (Syphilis, Toxoplasmosis, Tuberculosis). Major histocompatibility antigen testing may be performed to investigate genetic susceptibility to uveitis. The most common antigens include HLA-B27, HLA-A29 (in birdshot chorioretinopathy) and HLA-B51 (in Behçet disease). Radiology X-ray may be used to show coexisting arthritis and chest X-ray may be helpful in sarcoidosis. Classification Uveitis is classified anatomically into anterior, intermediate, posterior, and panuveitic forms—based on the part of the eye primarily affected. Prior to the twentieth century, uveitis was typically referred to in English as "ophthalmia." * Anterior uveitis includes iridocyclitis and iritis. Iritis is the inflammation of the anterior chamber and iris. Iridocyclitis is inflammation of the iris and ciliary body with inflammation predominantly confined to ciliary body. Anywhere from two-thirds to 90% of uveitis cases are anterior in location (iritis). This condition can occur as a single episode and subside with proper treatment or may take on a recurrent or chronic nature. * Intermediate uveitis, also known as pars planitis, consists of vitritis—which is inflammation of cells in the vitreous cavity, sometimes with snowbanking, or deposition of inflammatory material on the pars plana. There are also "snowballs," which are inflammatory cells in the vitreous. * Posterior uveitis or chorioretinitis is the inflammation of the retina and choroid. * Pan-uveitis is the inflammation of all layers of the uvea(Iris, ciliary body and choroid).
complications of Sympathetic ophthalmia
complications of Reye syndrome
medical cause of Dry eye syndrome
medical cause of Stye
symptom of Reye syndrome
symptoms of Sympathetic ophthalmia
symptom of Meesmann corneal dystrophy
picture of Graves' ophthalmopathy