I. G. Ovechkin
Academy of postgraduate education
Russian Federation

 Dr. of Med. Sci, professor, professor of the department of ophthalmology 

 91, Volokolamskoye Highway, Moscow, 125371, Russia 

M. E. Konovalov
Academy of postgraduate education
Russian Federation

 Dr. of Med. Sci, professor, professor of the department of ophthalmology 

 91, Volokolamskoye Highway, Moscow, 125371, Russia 

O. G. Leksunov
Ophthalmological Center of Karelia
Russian Federation

 Cand. of Med. Sci., head of the ophthalmology department, general director 

 1B, Varkausa Quai, Republic of Karelia, Petrozavodsk, 185031, Russia 

E. I. Kovrigina
Ophthalmological Center of Karelia
Russian Federation

 ophthalmologist 

1B, Varkausa Quai, Republic of Karelia, Petrozavodsk, 185031, Russia 

V. E. Yudin
Moscow State University of Food Production
Russian Federation

 Dr. of Med. Sci, professor, head of the department of medical rehabilitation and physical methods of treatment with courses of osteopathy and palliative care 

 11, Volokolamskoe Highway, Moscow, 125080, Russia