1. Gilbert C, Foster A. Childhood blindness in the context of VISION 2020—the right to sight. Bull World Health Organ. 2001;79:227–32.
2. Castenes MS. Major review: the underutilization of vision screening (for amblyopia, optical anomalies and strabismus) among preschool age children. Binocul Vis Strabismus Q. 2003;18:217–32.
3. Isawunmi MA. Ocular disorders amongst school children in Ilesa east Local Government area, Osun State, Nigeria. National Postgraduate Medical College of Nigeria. Dissertation. 2003.
4. Salman MS. Pediatric eye diseases among children attending outpatient eye department of Tikrit Teaching Hospital. Tikrit J Pharm Sci. 2010;7(1):95–103.
5. Pi LH, et al. prevalence of eye diseases and causes of visual impairment in school-aged children in Western China. J Epidemiol. 2012;22(1):37–44.