Infectious causes of posterior uveitis.

The differential diagnosis of posterior infectious uveitis is broad. There are, however, a few common infectious causes of posterior uveitis that should always be considered. The more common infectious causes of posterior uveitis include syphilis, toxoplasmosis, tuberculosis, endogenous endophthalmitis, and viral causes (including herpes simplex virus, herpes zoster virus, and cytomegalovirus). The clinical features, diagnostic tools, and treatment options for each of these are reviewed in this article.