eye disorders
Infectious Uveitis
Herpesviruses: HSV and VZV
 Herpes Simplex Virus (HSV) Infections causes anterior uveitis. Symptoms of anterior uveitis include Ocular aching Photophobia Decreased vision Signs include Redness Conjunctival injection and anterior chamber inflammation (cells and flare), often accompanied by corneal inflammation ( Herpes Simplex Keratitis ) Decreased corneal sensation Patchy or sectorial iris atrophy Intraocular pressure may be elevated as well, in contrast to the low intraocular pressure typically associated with most forms of uveitis; elevation can be detected by using applanation Tonometry with, for example, a Goldmann tonometer, a pneumotonometer, an electronic indentation tonometer, or, if these are not available, a Schiotz tonometer. (1 g orally 2 times/day for HSV and 1 g orally 3 times/day for VZV) may also be given. Drops to lower intraocular pressure may be required in patients with Overview of Glaucoma . (ARN) is a rapidly progressing form of retinitis that is a much less common manifestation of VZV and HSV infection. ARN typically manifests as confluent retinitis, occlusive retinal vasculitis, and moderate to severe vitreous inflammation. One third of ARN cases become bilateral, and in three fourths of eyes, Retinal Detachment occurs. ARN may also occur in patients with HIV/AIDS, but severely immunocompromised patients can have less prominent vitreous inflammation. Anterior chamber paracentesis or vitreous biopsy for culture and polymerase chain reaction analysis may be useful in diagnosing ARN. Treatment options include IV 