Education and myopia: assessing the direction of causality by mendelian randomisation

Clarification - The authors of this paper (BMJ 2018;361:k2022, doi:10.1136/bmj.k2022) would like to acknowledge: UK Biobank was established by the Wellcome Trust (London, UK) medical charity; the Medical Research Council (London, UK); the Department for Health (London, UK); Scottish Government (Edinburgh, UK); and the North west Regional Development Agency (Warrington, UK). It also received funding from the Welsh Assembly Government (Cardiff, UK); the British Heart Foundation (London, UK); and Diabetes UK (London, UK). Collection of eye and vision data was supported by the Department for Health through an award made by the NIHR to the Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust, and UCL Institute of Ophthalmology, London, United Kingdom (grant No BRC2_009). Additional support was provided by The Special Trustees of Moorfields Eye Hospital, London, UK (grant No ST 12 09). The collection of eye data was facilitated by the UK Biobank Eye and Vision Consortium.