A.A. VARAVKA, A.B. KACHANOV St. Petersburg branch of the Interbranch scientific and technical complex «Eye Microsurgery» named after acad. S.N. Fedorov, 21 Ya. Gashek St., St. Petersburg, Russian Federation,192283  Varavka A.A. ― ophthalmologist, tel. +7-921-659-77-77, e-mail: varav4@mail.ru Kachanov A.B. ― Cand. Med. Sc., Doctor of the Department of Refractive Surgery, Associate Professor of the Department […]