Correction to: Eye (2015) 29, 1633–1638; doi:10.1038/eye.2015.164; published online 28 August 2015

Since the online publication of this article, it has been noted that the author name Khanchan Bhan, a member of the RVO Guideline Group, was incorrect and should be replaced with Kanchan Bhan.

The authors would like to apologise for this error.