1. The prevalence and causes of blindness in the Sultanate of Oman: the Oman Eye Study (OES)
2. Ministry of Health, Sultanate of Oman. Blindness Survey Report; Oman Eye Study (OES). Mazoon Printing Press, Muscat, Oman 1998; 15–20
3. World Health Organization, Cairo, Egypt 2003, http://whilibdoc.who.EMR/2003/WHOPBL/03.1pdf (WHO/EMR/PBL/03.1). Report on the conference on ‘VISION 2020. Planning for the Eastern Mediterranean Region’
4. Ministry of Health, Sultanate of Oman. Eye Health Care Manual, 2nd ed. Al Zahra Printers, Muscat, Oman 2000; 6–7