1. Department of Ophthalmology, Bezmialem University School of Medicine, Istanbul, Turkey;
2. Department of Biochemistry, Bezmialem University School of Medicine, Istanbul, Turkey;
3. Department of Ophthalmology, Nevsehir State Hospital, Nevsehir, Turkey;
4. Department of Ophthalmology, Samsun Gazi State Hospital, Samsun, Turkey