1 Life Course Epidemiology and Biostatistics Section, UCL Great Ormond Street Institute of Child Health, University College London, London, UK; UCL Institute of Ophthalmology, University College London, London, UK; Great Ormond Street Hospital NHS Foundation Trust, London, UK; NIHR Moorfields Eye Hospital Biomedical Research Centre, London, UK; Moorfields Eye Hospital NHS Foundation Trust, London, UK.
2 Life Course Epidemiology and Biostatistics Section, UCL Great Ormond Street Institute of Child Health, University College London, London, UK; UCL Institute of Ophthalmology, University College London, London, UK; Great Ormond Street Hospital NHS Foundation Trust, London, UK; NIHR Moorfields Eye Hospital Biomedical Research Centre, London, UK; Moorfields Eye Hospital NHS Foundation Trust, London, UK; NIHR Great Ormond Street Hospital Biomedical Research Centre, London, UK. Electronic address: [email protected].