F. Al-Wadani, R. Khandekar, M. A. Al-Hussain, A. A. Alkhawaja, M. Sarfaraz Khan, and R. A. Alsulaiman, “Magnitude and Causes of Low Vision Disability (Moderate and Severe Visual Impairment) among Students of Al-Noor Institute for the Blind in Al-Hassa, Saudi Arabia : A case series”, Sultan Qaboos Univ Med J, vol. 12, no. 1, pp. 62–68, Feb. 2012.