RT Journal Article SR Electronic T1 BMJ Open Ophthalmology JF BMJ Open Ophthalmology JO BMJ Open Ophth FD BMJ Publishing Group Ltd SP e000530 DO 10.1136/bmjophth-2020-000530 VO 5 IS 1 A1 Kaye, Stephen B YR 2020 UL http://bmjophth.bmj.com/content/5/1/e000530.abstract AB