Uveitis Associated with Drugs; Clinical Findings, Diagnosis and Treatment

Immüne recovery üveitis (IRU) is the most common form of immune reconstitution inflammatory syndrome in human immunodeficiency virus (HIV) infected patients with cytomegalovirus (CMV) retinitis who are receiving highly active antiretroviral therapy (HAART) therapy. In patients with CMV retinitis in the HAART era, immune recovery may be associated with a greater number of inflammatory complications, including vitritis, macular edema, epiretinal membrane formation, papillitis and iris synechiae. Given the range of ocular manifestations of HIV, routine ocular examinations and screening carefully for visual loss are recommended in patients with CD4 counts <50 cells/microliter. With the increasing longevity of these patients due to the use of HAART, treatment of IRU may become an issue in the future. Uveitis has been associated with a number of systemic, intravitreal and topical medications, and may also occur after vaccination and the use of other substances. However, drug induced uveitis is a relatively rare event. Only a few drugs have been proven to cause uveitis, whereas many others may not represent a direct cause-and-effect relationship. Anterior uveitis is the most common clinical presentation and therefore, patients with a new onset anterior uveitis should be asked whether they have recently started any new medications. These patients need to undergo the same diagnostic protocol followed for any uveitis case. Drug-induced uveitis is almost always reversible within weeks of cessation of the medication and the institution of topical treatment of the inflammation. The clinical findings, diagnosis and treatment of IRU and drug induced uveitis are presented in this current study.