Correction to: Eye (2012) 26, 756–757; doi:10.1038/eye.2011.357; published online 3 February 2012

Since the publication of the above article, the authors have noticed that the number of difficult cases given in the first sentence of the sixth paragraph was incorrect. The sentence should read as follows:

A total of 245 (53%) difficult cases were identified from the 462 cases (difficult cases included myopia >5D, hypermetropia >4D, vitrectomised eyes, dense white/brunescent cataracts, pseudoexfoliation, small pupils, gross head movements intraoperatively, and patients on Tamsulosin (Table 1)).

The authors would like to apologise for this mistake.