The NOD audit was initially funded for 3 years from September 2014 to August 2017 and this has now been extended for a further two years from September 2017 to August 2019.

Phases in the project:

  • Legacy or historic cataract surgery data analysis (report published in April 2016)
  • Pilot phase, May 2015 – September 2015
  • First annual prospective data collection, 01 September 2015 – 31 August 2016 (report published in July 2017)
  • Second annual prospective data collection, 01 September 2016 – 31 August 2017 (report published in August 2018)
  • Third annual prospective data collection, 01 September 2017 – 31 August 2018 (report expected to be published in July 2019)
  • Fourth annual prospective data collection starts 01 September 2018 – 31 August 2019 (5 years funding will run out before completion of analysis)

The prospective audit data will be taken from all adult patients undergoing cataract surgery in all NHS hospitals in England and Wales. Private organisations providing NHS funded cataract service will also be invited to contribute data to the NOD audit.


The main objectives of this project are to:

  • Build on proof of concept work already achieved by the National Ophthalmology Database regarding the extraction, analysis and reporting of data, including surgeon-level reporting
  • Prospectively collect, collate and analyse a standardised, nationally agreed dataset from all cataract centres providing NHS cataract surgery in England & Wales
  • Update benchmark standards for cataract care and surgery
  • Identify surgery outcomes and risk factors which will help to improve patient safety
  • Utilise validated measures of quality which discriminate between centres and surgeons
  • Provide a data collection tool that allows for post-operative data to be entered by optometrists
  • Submit relevant aspects of the audit for peer reviewed publication in medical journals
  • Publication of results for centres and surgeons