1. Ume Sughra:
Department of Al-Shifa School of Public Health, Al-Shifa Research Centre, Pakistan Institute of Ophthalmology, Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan
2. Wajid Ali Khan:
Department of Pakistan Institute of Ophthalmology, Cornea, Eye Bank, Al-Shifa Research Centre, Ethical Research Committee, Al-Shifa Trust Eye Hospital,Rawalpindi,Pakistan
3. Sultana Kausar:
Department of Al-Shifa School of Public Health, Al-Shifa Research Centre, Pakistan Institute of Ophthalmology, Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan