A.I. Lebedeva Ph.D. (Biol.), Senior Research Scientist, FSBI «Russian Eye and Plastic Surgery Centre» of the Russian Federation Ministry of Health, Ufa, Russia. E-mail: jeol02@mail.ru L.A. Musina Dr.Sc. (Biol.), Leading Research Scientist, FSBI «Russian Eye and Plastic Surgery Centre» of the Russian Federation Ministry of Health, Ufa, Russia. E-mail: morphoplant@mail.ru O.R. Shangina Dr.Sc. (Biol.), Leading Research Scientist, FSBI «Russian Eye and Plastic Surgery Centre» of the Russian Federation Ministry of Health, Ufa, Russia. E-mail: alloolga@mail.ru