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.

        Key words: retinal vasculitis, lung tuberculosis