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We acknowledge the points made by Lindfield et al1 and thank them for taking an interest in our article. Their letter highlights that our subanalysis of standardised mortality ratio (SMR) by age group only demonstrates decreased mortality in the older population groups. They hypothesise that within these older age groups, individuals with comorbidity that would affect their mortality may be less likely to have cataract surgery, thus artificially lowering the SMR measured in our study. They go …
Competing interests: None.
Funding: MSJB is funded as a Clinical Research Fellow by Bausch and Lomb. EJM is funded by a National Career Scientist Award from the Department of Health, and NHS Research and Development.
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