From the Ashford & St Peter's NHS Foundation Trust, Surrey, United Kingdom (Carr, Rezai, Gangwani); Frimley Health NHS Foundation Trust, Surrey, United Kingdom (Melmane, Poole).

Corresponding author: Francis Carr, BMBCh, FRCOphth, MRCP, FRACP, Ophthalmology Department, Ashford & St Peter's NHS Foundation Trust, Guildford Rd, Chertsey, KT16 0PZ, United Kingdom. Email: [email protected].

Disclosures: None of the authors have any financial or proprietary interest in any material or method mentioned.

First author:Francis Carr, BMBCh, FRCOphth, MRCP, FRACPAshford & St Peter's NHS Foundation Trust, Surrey, United Kingdom