1 NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust, UCL Institute of Ophthalmology, London, UK. anthony.khawaja@ucl.ac.uk.
2 Department of Ophthalmology, University Hospitals UZ Leuven, Leuven, Belgium.
3 Research Group Ophthalmology, Catholic University KU Leuven, Leuven, Belgium.
4 Clinique Universitaire d'Ophtalmologie, CHU de Grenoble-Alpes, Grenoble, France.
5 NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust, UCL Institute of Ophthalmology, London, UK.
6 University Eye Clinic, Maastricht University Medical Center+, Maastricht, The Netherlands.