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Drug-induced uveitis in aids patients: two case reports.

Patients with acquired immunodeficiency syndrome (AIDS) can develop severe uveitis. Although infectious and autoimmune causes must always be considered, drug induced uveitis is also an important etiology. Herein, we present two case reports illustrating the classical presentation of rifabutin and cidofovir induced uveitis. The first case was a 33 year old woman with AIDS treated with anti-protease and anti-tuberculosis drugs (including rifabutin). She presented with a red painful right eye. There was a strong anterior segment inflammation with fibrinous exudates and a dense vitritis. Rifabutin was stopped and topical steroids and mydriatics were given. Intraocular inflammation and symptoms rapidly resolved. The second patient was a 36 year old woman who presented with a painful decrease of vision in her left eye. She was followed for bilateral CMV retinitis in the setting of AIDS and had recently received 2 systemic injections of cidofovir. Anterior segment inflammation with posterior synechiae in both eyes and folds of Descemet membrane in the left eye were noted. Intraocular pressure was 0 mmHg in the left eye and 10 mmHg in the right eye. Fundus examination disclosed CMV retinitis scars in the right eye and choroidal folds in the macula of the left eye. Cidofovir was discontinued and topical steroids and mydriatics started. Progressively the inflammation decreased and the intraocular pressure returned to normal levels. In conclusion, rifabutin and cidofovir are classical examples of drug induced uveitis with distinct characteristic clinical presentation. Recognition of those entities in AIDS patients can avoid useless and potentially invasive interventions in those fragile people.