1. Department of Ophthalmology, University of Ilorin Teaching Hospital, Ilorin, Nigeria
2. Obafemi Awolowo University Teaching Hospitals Complex, Ile Ife, Nigeria
3. Department of Medicine, College of Health Sciences, University of Ilorin, Nigeria
4. Department of Ophthalmology, University of Ilorin Teaching Hospital, Ilorin/ University of Ilorin, Ilorin, Nigeria