1 St Paul's Eye Unit, Royal Liverpool University Hospital, Liverpool, United Kingdom.
2 Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom.
3 Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
4 Department of Biomedical and Clinical Sciences, Faculty of Medicine, Linköping University, Linköping, Sweden.
5 Department of Ophthalmology, Sørlandet Hospital Arendal, Arendal, Norway.
6 Ophthalmology Clinic, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy.