Affiliation: | 1. Ophthalmology Department, Royal North Shore Hospital, Sydney, New South Wales, Australia;2. Glaucoma Unit, Sydney Eye Hospital, Sydney, New South Wales, Australia;3. ENT Department, Royal North Shore Hospital, Sydney, New South Wales, Australia;4. Coastwide Eye Surgery, Erina and Wyong, New South Wales, Australia;5. Eye Associates, Sydney, New South Wales, Australia |