D.A. SHCHERBAKOV1, A.E. EKIMOVA1, A.S. KROTOVA1, Е.М. ZABUREVA2 1Tyumen State Medical University, 54 Odesskaya Str., Tyumen, Russian Federation, 625023 2Tyumen Regional Ophthalmologic Dispensary, 118 Kholodilnaya Str., building 1, Tyumen, Russian Federation, 625048 Shcherbakov D.A. — Cand. Med. Sc., Assistant Lecturer of the Department of Otorhinolaryngology, e-mail: dmst@bk.ru Ekimova A.E. — student, e-mail:nasatasiaekimova@gmail.com Krotova A.S. — […]