1. School of Veterinary Medicine and Zootechny; Federal University of Bahia; Salvador BA Brazil
2. Institute of Health Sciences; Federal University of Bahia; Salvador BA Brazil
3. Department of Optometry; College of Applied Medical Sciences; King Saud University; Riyadh Saudi Arabia
4. Brazilian Institute of Ophthalmology and Prevention of Blindness; Bahia School of Medicine and Public Health; Salvador BA Brazil