**Author details**

Kristina Horkovicova and Alena Furdova\* Department of Ophthalmology, Faculty of Medicine, Comenius University, Bratislava, Slovakia

\*Address all correspondence to: alikafurdova@gmail.com; furdova1@uniba.sk

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
