Posters, diagrams, animation showing the process of development of trachoma in Chuvashia, Mordovia, Tatarstan, Bashkiria, the Mari Republic. Life of the Chuvashes, Udmurts (Votyaks). Treatment of trachoma by healers. Sanitary and educational propaganda among the inhabitants of villages, villages. Medical institutes, eye clinics. Institute staff, doctors examine patients. Outbound medical expeditions. Creation of medical centers in villages, villages.