[1] Princess Alexandra Hosp, Dept Ophthalmol, Brisbane, Qld, Australia
[2] Univ Sydney, Save Sight Inst, Specialty Clin Ophthalmol & Eye Hlth, Sydney, NSW, Australia
[3] Sydney Eye Hosp, Sydney, NSW, Australia
[4] Westmead Hosp, Dept Ophthalmol, Sydney, NSW, Australia
[5] Macquarie Univ, Fac Med & Hlth Sci, Dept Ophthalmol, Sydney, NSW, Australia
[6] Westmead Hosp, Dept Ophthalmol, Corner Hawkesbury & Darcy Rd, Westmead, NSW 2145, Australia