1. Vision Sciences Group, School of Psychology, Faculty of Science and IT, The University of Newcastle, New South Wales, Australia
2. Vision Sciences Group, School of Psychology, Faculty of Science and IT, The University of Newcastle, New South Wales, Australia 4Department of Ophthalmology, Daqing Oilfield General Hospital, Saertu, Daqing, China
3. Vision Sciences Group, School of Psychology, Faculty of Science and IT, The University of Newcastle, New South Wales, Australia 5School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong