1. Department of Ophthalmology, Te Whatu Ora Southern/Health New Zealand Southern, Dunedin, New Zealand
2. Department of Medicine, University of Otago, Otago, New Zealand
3. Department of Ophthalmology, Te Whatu Ora Te Toka Tumai/Health New Zealand Auckland, Auckland, New Zealand
4. Department of Ophthalmology, University of Auckland, Auckland, New Zealand