Correction to: Eye (2006) E-pub ahead of print: March 31 2006; doi: 10.1038/sj.eye.6702337

Part way through the discussion section, the text was published incorrectly.

The correct text is shown here.

In January 2005, the Department of Health announced that over 130 000 patients had received treatment for various operations in IS-TCs, with mobile units having performed 10 000 cataract operations at a rate of 37 cataract operations per day, 6 days a week.

The authors would like to apologise for this mistake.