1. Department of Ophthalmology, Sarikamis Military Hospital, Kars, Turkey.
2. Department of Aerospace and Hyperbaric Medicine, Gulhane Military Medical Academy, Eskisehir, Turkey.
3. Department of Ophthalmology, Gulhane Military Medical Academy, Ankara, Turkey.
4. Department of Ophthalmology, Kafkas University, Kars, Turkey.