The authors examined during the period 2003-2004 in an eye practice 652 patients who were hospitalized due to active lung tuberculosis. All patients were treated with combination of 3-4 antituberculotic drugs and the examination was performed to observe the possible side effects of ethambutol to the optic nerve. The most interesting was the ocular finding in a young man treated due to acute lung tuberculosis in whom during the antituberculotic therapy with combination of 4 antituberculotics, the acute retinal vasculitis developed. This type of vasculitis is rare demonstration of ocular tuberculosis. The ocular finding resolved after starting the systemic corticoid therapy.
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