WGOS 3 certificates of vision impairment (CVI) issued to Welsh residents by ethnic group
See what variables and values are shown in your table
| Variable | Visibility | Selected values | Action |
|---|---|---|---|
| Ethnicity | Shown in table | All 4 values | Change values |
| Year | Shown in table | All 14 values | Change values |
| Data description | Shown in table | Number of CVI | Value cannot be changed |
Table
Standard shorthand is used in this table: [p] = provisional, [r] = revised, [t] = total.
| Data values | Data description | Ethnicity | Year |
|---|---|---|---|
| 1,362 [t] | Number of CVI | Total | 2012-13 |
| 1,302 [t] | Number of CVI | Total | 2013-14 |
| 1,243 [t] | Number of CVI | Total | 2014-15 |
| 1,388 [t] | Number of CVI | Total | 2015-16 |
| 1,421 [t] | Number of CVI | Total | 2016-17 |
| 1,455 [t] | Number of CVI | Total | 2017-18 |
| 1,603 [t] | Number of CVI | Total | 2018-19 |
| 1,618 [t] | Number of CVI | Total | 2019-20 |
| 1,048 [t] | Number of CVI | Total | 2020-21 |
| 1,563 [t] | Number of CVI | Total | 2021-22 |
| 1,574 [t] | Number of CVI | Total | 2022-23 |
| 1,677 [t] | Number of CVI | Total | 2023-24 |
| 1,699 [r] | Number of CVI | Total | 2024-25 |
| 1,491 [p] | Number of CVI | Total | 2025-26 |
| 1,201 | Number of CVI | White | 2012-13 |
| 1,155 | Number of CVI | White | 2013-14 |
| 1,082 | Number of CVI | White | 2014-15 |
| 1,163 | Number of CVI | White | 2015-16 |
| 1,199 | Number of CVI | White | 2016-17 |
| 1,223 | Number of CVI | White | 2017-18 |
| 1,332 | Number of CVI | White | 2018-19 |
| 1,287 | Number of CVI | White | 2019-20 |
| 824 | Number of CVI | White | 2020-21 |
| 1,263 | Number of CVI | White | 2021-22 |
| 1,240 | Number of CVI | White | 2022-23 |
Next update expected:October 2027
Updates
- 8th October 2026
New data added for 2025-26 (provisional). And data for 2024-25 has been updated to include Welsh residents certified in England.
- 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 2026
- Dataset ID
- 3db6d854-67ca-4de3-a6e0-d441013c0575
Overview
- Summary of dataset and variables
This dataset shows the number of Welsh residents newly certified as severely sight impaired or sight impaired with a certificate of vision impairment (CVI) by broad ethnic group.
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).
- 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.
To produce the final dataset the number of new certifications are aggregated by broad ethnic group and financial year at Wales level.
- Statistical quality
The ethnicity of patients issued with a CVI is unknown for a sizeable proportion of certificates each year.
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.
- Related reports
Published by
- Organisation
- Welsh Government
- Contact email
- stats.healthinfo@gov.wales