Number of people newly certified severely sight impaired and sight impaired by age group and health board

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Data descriptionShown in tableNumber of CVIValue cannot be changed
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Data valuesData descriptionAgeYearArea
1,362 [t]Number of CVITotal2012-13Wales
391 [t]Number of CVITotal2012-13Betsi Cadwaladr University Health Board
83 [t]Number of CVITotal2012-13Powys Teaching Health Board
137 [t]Number of CVITotal2012-13Hywel Dda University Health Board
263 [t]Number of CVITotal2012-13Abertawe Bro Morgannwg University Health Board
105 [t]Number of CVITotal2012-13Cwm Taf University Health Board
235 [t]Number of CVITotal2012-13Aneurin Bevan University Health Board
133 [t]Number of CVITotal2012-13Cardiff and Vale University Health Board
15 [t]Number of CVITotal2012-13Unknown
1,302 [t]Number of CVITotal2013-14Wales
323 [t]Number of CVITotal2013-14Betsi Cadwaladr University Health Board
63 [t]Number of CVITotal2013-14Powys Teaching Health Board
119 [t]Number of CVITotal2013-14Hywel Dda University Health Board
277 [t]Number of CVITotal2013-14Abertawe Bro Morgannwg University Health Board
113 [t]Number of CVITotal2013-14Cwm Taf University Health Board
245 [t]Number of CVITotal2013-14Aneurin Bevan University Health Board
147 [t]Number of CVITotal2013-14Cardiff and Vale University Health Board
15 [t]Number of CVITotal2013-14Unknown
1,243 [t]Number of CVITotal2014-15Wales
267 [t]Number of CVITotal2014-15Betsi Cadwaladr University Health Board
58 [t]Number of CVITotal2014-15Powys Teaching Health Board
146 [t]Number of CVITotal2014-15Hywel Dda University Health Board
254 [t]Number of CVITotal2014-15Abertawe Bro Morgannwg University Health Board
115 [t]Number of CVITotal2014-15Cwm Taf University Health Board
244 [t]Number of CVITotal2014-15Aneurin Bevan University Health Board
Showing 1 to 25 of 612 rows
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Next update expected:September 2026

Updates

30th September 2025
Dataset first published.

Main information

Designation
Official statistics
Data provider 1
NHS Wales Shared Services Partnership
Data source 1
Certificate of Vision Impairment (CVI) form
Data provider 2
Moorfields Eye Hospital
Data source 2
No specific source from data provider
Time period covered
April 2012 to March 2025

Overview

Summary of dataset and variables

This dataset shows the number of people newly certified as severely sight impaired or sight impaired with a certificate of vision impairment (CVI).

Wales General Ophthalmic Services (WGOS) 3 enables patients who would benefit from optical and non-optical aids as well as holistic rehabilitation support (including sight impairment registration) and advice to access a low vision service in or close to their place of residence. WGOS 3 also includes Certification of Vision Impairment (CVI).

The data is broken down by age group, health board (of patient’s residence), and financial year. Certification is a formal process that recognises individuals with significant vision loss who may be eligible for additional support. The dataset provides insight into the distribution of new certifications across different age groups and health boards over time.

Data collection or calculation

For 2023-24 onwards, data is extracted from the low vision system maintained by NHS Wales Shared Services Partnership (NWSSP) and is based on data collected from a CVI form by NWSSP. The data covering periods up to 2022-23 was supplied by Moorfields Eye Hospital and was extracted from the Database for Epidemiological data on Visual Impairment Certificates (DEVICE). The counts are based on Welsh residents newly certified on Welsh and English forms. After NWSSP took over the data collection from 2023-24, data for Welsh residents certified in England is provided separately by Moorfields Eye Hospital. CVIs are grouped by financial year, health board and age categories: under 20, 20–59, 60–79, and 80 or over, with totals calculated at both health board and Wales levels. Counts represent the number of new certifications within each group.

Statistical quality

To protect confidentiality, counts fewer than five are suppressed, and secondary suppression is applied where necessary to prevent disclosure through deduction. Data for the latest year excludes Welsh residents certified in England. This is because this data is supplied by Moorfields Eye Hospital later in the year and therefore, the data for the latest year will be updated to include Welsh residents certified in England in the next publication. On 1 April 2019, health service responsibility for Bridgend residents moved from Abertawe Bro Morgannwg to Cwm Taf. Health board names also changed: Cwm Taf became Cwm Taf Morgannwg, and Abertawe Bro Morgannwg became Swansea Bay. See the weblinks section for official statements.

Published by

Organisation
Welsh Government
Contact email
stats.healthinfo@gov.wales