[Ophthalmologic control examinations during therapy with ethambutol (author's transl)].

Report on 6,200 control examinations of patients treated with Ethambutol. Subjective troubles of vision do not influence continuation of therapy. In 8 patients (0,5%) symptoms of neuritis nervioptici accompanied with visus deterioration required to stop therapy (case reports on these 8 patients). Ophthalmologic control examinations are recommended before beginning therapy, during continuous therapy in hospital every eight week, and in case of ambulatory intermitting therapy every third to fourth month.