Graham A Lee1, Peter Shah2. 1. City Eye Centre, Brisbane, Queensland, Australia; University of Queensland, Brisbane, Queensland, Australia; Birmingham Institute for Glaucoma Research, Institute of Translational Medicine, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom. 2. Birmingham Institute for Glaucoma Research, Institute of Translational Medicine, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Institute of Ophthalmology, University College London, London, United Kingdom; Centre for Health & Social Care Improvement, University of Wolverhampton, Wolverhampton, United Kingdom.