Abstract
Introduction
The Certifications of Visual Impairment (VI) system was implemented to quantify and classify the incidence of visual impairment amongst the England and Wales population. This retrospective study investigates the trend in the certification of VI amongst children aged <16 years old.
Methods
CVI data provided by the Certifications Office, was extracted and assessed to identify the various causes of mild-moderate (SI) and severe (SSI) visual impairment between 2009–2022. The data was classified into 11 broad groups which were similar in pathology. Incidence data was calculated using the official Census data. Byar’s method was used to calculate confidence intervals to determine significant changes in the number of new registrations in 4 early intervals amongst conditions that recorded >5 registrations in every year or the study.
Results
Between 2009–2022 there were 18,387 new registrations (10,915 SI and 7472 SSI). Disorders of the CNS (4145), retinal disorders (2990), and congenital abnormalities of the eye (4491) made up nearly 2/3 of the registrations. Amongst SI registrations, there was a significant increase in these 3 groups over the 13-year period excluding the first year of the Covid pandemic. However, there was a significant decrease in SSI registrations for congenital abnormalities.
Conclusions
Overall, there is an increasing number of children registered SI/SSI in England and Wales. The main causes are: disorders of the CNS, retinal disorders and congenital abnormalities of the eye. This may be due to increasing awareness, early screening and advancements in genomic testing.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 18 print issues and online access
$259.00 per year
only $14.39 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to the full article PDF.
USD 39.95
Prices may be subject to local taxes which are calculated during checkout


Similar content being viewed by others
Data availability
Full dataset not available to be published at the request of the CVI committee due to the sensitive nature and low numbers of certain paediatric condition groups. Therefore, we have not made the full dataset available in order to preserve patient confidentiality and anonymity. Confidentiality for study involvement is given prospectively on completion of CVI forms by parents which allows for the retrospective use of data in studies such as this which investigate visual impairment. This study was cleared by the director of Research & Development at the CVI committee.
References
Bunce C, Zekite A, Wormald R, Bowman R. Is there evidence that the yearly numbers of children newly certified with sight impairment in England and Wales has increased between 1999/2000 and 2014/2015? A cross-sectional study. BMJ Open. 2017;7:e016888 https://bmjopen.bmj.com/lookup/doi/10.1136/bmjopen-2017-016888.
Bunce C, Evans J, Fraser S, Wormald R. BD8 certification of visually impaired people. Br J Ophthalmol. 1998;82:72–6. https://bjo.bmj.com/lookup/doi/10.1136/bjo.82.1.72.
Rahman F, Zekite A, Bunce C, Jayaram H, Flanagan D. Recent trends in vision impairment certifications in England and Wales. Eye [Internet]. 2020;34:1271–8. https://www.nature.com/articles/s41433-020-0864-6.
Bunce C, Wormald R. Causes of blind certifications in England and Wales: April 1999–March 2000. Eye. 2008;22:905–11. https://www.nature.com/articles/6702767.
RNIB. The criteria for certification. RNIB. 2014. Available from: https://www.rnib.org.uk/your-eyes/navigating-sight-loss/registering-as-sight-impaired/the-criteria-for-certification/.
Department of Health and Social Care. Certificate of vision impairment explanatory notes for consultant ophthalmologists and hospital eye clinic staff in England. Department of Health and Social Care. 2017. Available from: https://assets.publishing.service.gov.uk/media/5a74fffbed915d3c7d5299be/CVI_guidance.pdf
Department of Health and Social Care. Certificate of Vision Impairment for people who are sight impaired (partially sighted) or severely sight impaired (blind). Department of Health and Social Care. 2018. Available from: https://assets.publishing.service.gov.uk/media/6318b725d3bf7f77d2995a5c/certificate-of-vision-impairment-form.pdf
Office for National Statistics (ONS). Population estimates for the UK, England, Wales, Scotland, and Northern Ireland: mid-2023. 2024. Available from: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/bulletins/annualmidyearpopulationestimates/latest#cite-this-statistical-bulletin
Stats Wales. National level population estimates by year, age and UK country: POPU0003. 2024. Available from: https://statswales.gov.wales/catalogue/population-and-migration/population/estimates/nationallevelpopulationestimates-by-year-age-ukcountry
Public Health England. Technical Guide: Confidence Intervals. 2018.
Breslow NE, Day NE Statistical methods in cancer research. Volume II--The design and analysis of cohort studies. IARC Sci Publ. 1987;1–406. Available from: http://www.ncbi.nlm.nih.gov/pubmed/3329634
Mitry D, Bunce C, Wormald R, Leamon S, Simkiss P, Cumberland P, et al. Causes of certifications for severe sight impairment (blind) and sight impairment (partial sight) in children in England and Wales. Br J Ophthalmol. 2013;97:1431–6. http://bjo.bmj.com/content/97/11/1431.abstract.
Wood M, Gray J, Raj A, Gonzalez-Martin J, Yeo DCM. The impact of the first peak of the COVID-19 pandemic on a paediatric ophthalmology service in the United Kingdom: experience from Alder Hey Children’s Hospital. Br Ir Orthopt J. 2021;17:56–61. http://www.ncbi.nlm.nih.gov/pubmed/34278219.
Bouthour W, Biousse V, Newman NJ. Diagnosis of optic disc oedema: fundus features, ocular imaging findings, and artificial intelligence. Neuroophthalmology. 2023;47:177–92. http://www.ncbi.nlm.nih.gov/pubmed/37434667.
Dyer C Court overturns optometrist’s conviction for gross negligence manslaughter. BMJ. 2017 Aug 3;j3749. Available from: https://www.bmj.com/lookup/doi/10.1136/bmj.j3749
McNicholl C, Gill A, Harrison R, Atan D. Impact of the COVID-19 pandemic and Honey Rose case on hospital attendances of patients suspected to have papilloedema. Eye. 2023;37:2157–9. http://www.ncbi.nlm.nih.gov/pubmed/36443496 Jul Available from.
Poostchi A, Awad M, Wilde C, Dineen RA, Gruener AM. Spike in neuroimaging requests following the conviction of the optometrist Honey Rose. Eye. 2018;32:489–90. https://www.nature.com/articles/eye2017274 Mar 8Available from.
Sarkar S, Tripathy K Cortical Blindness. StatPearls. 2024; Available from: https://www.ncbi.nlm.nih.gov/books/NBK560626/
Chang MY, Borchert MS. Advances in the evaluation and management of cortical/cerebral visual impairment in children. Surv Ophthalmol. 2020;65:708–24. https://linkinghub.elsevier.com/retrieve/pii/S0039625720300497.
Tuohy GP, Megaw RA. Systematic review and meta-analyses of interventional clinical trial studies for gene therapies for the inherited retinal degenerations (IRDs). Biomolecules. 2021;11. Available from: http://www.ncbi.nlm.nih.gov/pubmed/34069580
Kumaran N, Michaelides M, Smith AJ, Ali RR, Bainbridge JWB. Retinal gene therapy. Br Med Bull. 2018;126:13–25. http://www.ncbi.nlm.nih.gov/pubmed/29506236.
Jacobson SG, Cideciyan AV, Ratnakaram R, Heon E, Schwartz SB, Roman AJ, et al. Gene therapy for leber congenital amaurosis caused by RPE65 mutations: safety and efficacy in 15 children and adults followed up to 3 years. Arch Ophthalmol. 2012;130:9–24. http://www.ncbi.nlm.nih.gov/pubmed/21911650 Jan Available from.
Russell S, Bennett J, Wellman JA, Chung DC, Yu Z-F, Tillman A, et al. Efficacy and safety of voretigene neparvovec (AAV2-hRPE65v2) in patients with RPE65-mediated inherited retinal dystrophy: a randomised, controlled, open-label, phase 3 trial. Lancet. 2017;390:849–60. http://www.ncbi.nlm.nih.gov/pubmed/28712537.
Bonkowsky JL, Keller S, AAP Section on Neurology, Council on Genetics. Leukodystrophies in children: diagnosis, care, and treatment. Pediatrics. 2021;148. Available from: http://www.ncbi.nlm.nih.gov/pubmed/34426533
Keller SR, Mallack EJ, Rubin JP, Accardo JA, Brault JA, Corre CS, et al. Practical approaches and knowledge gaps in the care for children with leukodystrophies. J Child Neurol. 2021;36:65–78. http://www.ncbi.nlm.nih.gov/pubmed/32875938.
Yang Y, Muzny DM, Reid JG, Bainbridge MN, Willis A, Ward PA, et al. Clinical whole-exome sequencing for the diagnosis of mendelian disorders. N Engl J Med. 2013;369:1502–11. http://www.ncbi.nlm.nih.gov/pubmed/24088041.
Salzman R, Kemp S. Newborn Screening. Adrenoleuodystrophy.info. 2024. Available from: https://adrenoleukodystrophy.info/clinical-diagnosis/ald-newborn-screening.
Watson MS, Mann MY, Lloyd-Puryear PR, Rodney Howel R. Newborn screening: toward a uniform screening panel and system. Genet Med. 2006;8:1S–252S. http://www.ncbi.nlm.nih.gov/pubmed/16783161.
Harris CM, Owen J, Sanders J. Arguments for the Adoption of a Nystagmus Care Pathway. Br Ir Orthopt J [Internet]. 2019;15:82–8. http://www.bioj-online.com/articles/10.22599/bioj.126/.
Aychoua N, Schiff E, Malka S, Tailor VK, Chan HW, Oluonye N, et al. Prospective study of pediatric patients presenting with idiopathic infantile nystagmus—Management and molecular diagnostics. Front Genet. 2022;13. Available from: https://www.frontiersin.org/articles/10.3389/fgene.2022.977806/full
The Royal College of Ophthalmologists. Managing Nystagmus in Childhood. 2023. Available from: https://www.rcophth.ac.uk/wp-content/uploads/2023/04/Managing-Nystagmus-in-Childhood.pdf
Gummer SL, Evans M, Cygan A, Osborne D, Griffiths HJ, Lee H, et al. Evaluating the impact of information and support for people with nystagmus in the digital age: a patient and carer questionnaire study. Curr Eye Res. 2020;45:713–7. https://www.tandfonline.com/doi/full/10.1080/02713683.2019.1696978.
Funding
No funding was sought.
Author information
Authors and Affiliations
Contributions
MF and MT designed the research protocol, analysed the data, wrote and edited the manuscript. RB edited the manuscript.
Corresponding author
Ethics declarations
Competing interests
The authors declare no competing interests
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary information
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Feyissa, M., Bowman, R. & Theodorou, M. Trends in paediatric visual impairment in England and Wales: a retrospective study (2009–2022). Eye 39, 2815–2821 (2025). https://doi.org/10.1038/s41433-025-03979-9
Received:
Revised:
Accepted:
Published:
Version of record:
Issue date:
DOI: https://doi.org/10.1038/s41433-025-03979-9

