The study material comprised 60 patients treated at the Clinic of Ophthalmology PMA in Szczecin, in the years from 1981 to 1984 due to uveitis. In the patients routine laboratory examinations were performed and extended by additional ones in the direction of diseases being of rheumatoidal type, tuberculosis, toxoplasmosis, diabetes and focal infections. All the patients had rosette tests of E, EA, EAC prior to treatment and after 30 days of therapy. The patients were divided at random into 2 groups with 30 persons each. Apart from typical treatment for uveitis the group I was given the FIBS preparation. The clinical picture failed to reveal any significant differences between the groups of patients. It was observed that the count of lymphocytes T and B in the peripheral blood was disturbed. After the applied treatment changes were recorded in the count of lymphocytes T and B, the shiftings in the group of patients, having been treated with FIBS, were marked more distinctly, particularly in the count of lymphocytes T.