1. Department of Ophthalmology, Mettapracharak Hospital, Sampran District, 52 moo2 Rhikhing, Sampran, Nakhon Pathom, 73210, Thailand
2. Department of Ophthalmology, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Arun Amarin Road, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
3. Department of Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Arun Amarin road, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
4. Department of Ophthalmology and Visual Sciences, South Australian Institute of Ophthalmology, University of Adelaide, Adelaide, South Australia, Australia