1. Department of Toxicology, Faculty of Pharmacy, Atatürk University, Erzurum, Turkey
2. Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
3. Department of Ophthalmology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
4. Department of Ophthalmology, Erzurum Regional Training, and Research Hospital, Erzurum, Turkey