A Crnej1, Z Khoueir2, G Cherfan3, A Saad4. 1. Beirut Eye and ENT Specialist Hospital, Beirut, Lebanon; Department of Ophthalmology, Surgical Centre Rožna Dolina, Ljubljana, Slovenia. 2. Beirut Eye and ENT Specialist Hospital, Beirut, Lebanon; Department of Ophthalmology, Saint-Joseph University Medical School, Beirut, Lebanon; Department of Ophthalmology, Mayo Clinic, Jacksonville, FL, USA. 3. Beirut Eye and ENT Specialist Hospital, Beirut, Lebanon; Department of Ophthalmology, Saint-Joseph University Medical School, Beirut, Lebanon. 4. Department of Ophthalmology, American University of Beirut Medical Center, Beirut, Lebanon; Anterior Segment and Refractive Surgery Department, Rothschild Foundation, Paris, France. Electronic address: dralainsaad@gmail.com.