**Author details**

Heba Alsharif1 , Hala Helmi2 and Azza Maktabi3 \*

1 Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia

2 College of Medicine, Alfaisal University, Riyadh, Saudi Arabia

3 Department of Ophthalmic Pathology/Oncology, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia

\*Address all correspondence to: az-mak@hotmail.com

© 2019 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.
