O.S. KUZNETZOVA, V.P. FOKIN The Volgograd Branch of the S. Fyodorov Eye Microsurgery Federal State Institution, 80 Zemlyachki Str., Volgograd, Russian Federation, 400138  Kuznetzova O.S. ― ophthalmologist, tel. (8442) 91-50-65, e-mail: [email protected] Fokin V.P. ― D. Med. Sc., Professor, Director, tel. (8442) 58-16-80, e-mail: [email protected]  Comparative analysis of the two groups of patients was performed: […]