This article [J. Biomed. Opt. 22(6), 065006 (2017)] was originally published online on 29 June 2017. An author was accidentally omitted from the author list. Josep Malvehy contributed to the concept and design, data collection, analysis and interpretation, and obtained funding. He has been added to the author list as shown above.
This article was corrected online on 20 July 2017.