About the Authors

Rajan Paul

Aberystwyth Eye Centre, Hywel Dda University Health Board, Abersywyth SY23 2EG United Kingdom

Dai Barr

Aberystwyth Eye Centre, Hywel Dda University Health Board, Abersywyth SY23 2EG United Kingdom

Corresponding Author

Email: rajan.paul@wales.nhs.uk