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

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Cause of certification ( of 3 selected3 selectable options)

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Data valuesData descriptionCause of certificationYearArea
67.2PercentageAge related macula degeneration2024-25Betsi Cadwaladr University Health Board
63.2 [t]PercentageAge related macula degeneration2024-25Wales
91NumberAge related macula degeneration2024-25Cardiff and Vale University Health Board
63.9PercentageAge related macula degeneration2024-25Cwm Taf Morgannwg University Health Board
31NumberGlaucoma2024-25Hywel Dda University Health Board
63NumberGlaucoma2024-25Aneurin Bevan University Health Board
25.5PercentageGlaucoma2024-25Aneurin Bevan University Health Board
84 [t]NumberDiabetic eye disease2024-25Wales
8.3PercentageDiabetic eye disease2024-25Swansea Bay University Health Board
63.0PercentageAge related macula degeneration2024-25Swansea Bay University Health Board
70NumberGlaucoma2024-25Betsi Cadwaladr University Health Board
25NumberGlaucoma2024-25Swansea Bay University Health Board
11NumberAge related macula degeneration2024-25Powys Teaching Health Board
152NumberAge related macula degeneration2024-25Hywel Dda University Health Board
7NumberDiabetic eye disease2024-25Cwm Taf Morgannwg University Health Board
15.7PercentageGlaucoma2024-25Cwm Taf Morgannwg University Health Board
19.9PercentageGlaucoma2024-25Betsi Cadwaladr University Health Board
8NumberDiabetic eye disease2024-25Hywel Dda University Health Board
8NumberDiabetic eye disease2024-25Cardiff and Vale University Health Board
108NumberAge related macula degeneration2024-25Cwm Taf Morgannwg University Health Board
11.6PercentageGlaucoma2024-25Swansea Bay University Health Board
24NumberGlaucoma2024-25Cardiff and Vale University Health Board
31NumberGlaucoma2024-25Cwm Taf Morgannwg University Health Board
75.2PercentageAge related macula degeneration2024-25Hywel Dda University Health Board
252 [t]NumberGlaucoma2024-25Wales
7NumberGlaucoma2024-25Powys Teaching Health Board
6.2PercentageDiabetic eye disease2024-25Aneurin Bevan University Health Board
42.3PercentageAge related macula degeneration2024-25Powys Teaching Health Board
3.9PercentageDiabetic eye disease2024-25Cardiff and Vale University Health Board
56.5PercentageAge related macula degeneration2024-25Cardiff and Vale University Health Board
3.4PercentageDiabetic eye disease2024-25Hywel Dda University Health Board
5.5 [t]PercentageDiabetic eye disease2024-25Wales
16NumberDiabetic eye disease2024-25Aneurin Bevan University Health Board
0NumberDiabetic eye disease2024-25Powys Teaching Health Board
13.6PercentageGlaucoma2024-25Hywel Dda University Health Board
17.2 [t]PercentageGlaucoma2024-25Wales
24.1PercentageGlaucoma2024-25Powys Teaching Health Board
113NumberAge related macula degeneration2024-25Aneurin Bevan University Health Board
12.8PercentageGlaucoma2024-25Cardiff and Vale University Health Board
0.0PercentageDiabetic eye disease2024-25Powys Teaching Health Board
19NumberDiabetic eye disease2024-25Swansea Bay University Health Board
26NumberDiabetic eye disease2024-25Betsi Cadwaladr University Health Board
7.2PercentageDiabetic eye disease2024-25Betsi Cadwaladr University Health Board
810 [t]NumberAge related macula degeneration2024-25Wales
114NumberAge related macula degeneration2024-25Swansea Bay University Health Board
52.6PercentageAge related macula degeneration2024-25Aneurin Bevan University Health Board
3.3PercentageDiabetic eye disease2024-25Cwm Taf Morgannwg University Health Board
215NumberAge related macula degeneration2024-25Betsi Cadwaladr University Health Board
54NumberGlaucoma2023-24Betsi Cadwaladr University Health Board
48NumberGlaucoma2023-24Aneurin Bevan University Health Board
37NumberGlaucoma2023-24Cardiff and Vale University Health Board
12NumberGlaucoma2023-24Powys Teaching Health Board
44NumberGlaucoma2023-24Swansea Bay University Health Board
52NumberGlaucoma2023-24Cwm Taf Morgannwg University Health Board
122NumberAge related macula degeneration2023-24Cardiff and Vale University Health Board
287 [t]NumberGlaucoma2023-24Wales
65.6PercentageAge related macula degeneration2023-24Cardiff and Vale University Health Board
2.6PercentageDiabetic eye disease2023-24Cardiff and Vale University Health Board
140NumberAge related macula degeneration2023-24Swansea Bay University Health Board
144NumberAge related macula degeneration2023-24Hywel Dda University Health Board
7.6PercentageDiabetic eye disease2023-24Cwm Taf Morgannwg University Health Board
876 [t]NumberAge related macula degeneration2023-24Wales
8.4PercentageDiabetic eye disease2023-24Aneurin Bevan University Health Board
9.0PercentageDiabetic eye disease2023-24Powys Teaching Health Board
6.8 [t]PercentageDiabetic eye disease2023-24Wales
6.0PercentageDiabetic eye disease2023-24Hywel Dda University Health Board
62.9PercentageAge related macula degeneration2023-24Cwm Taf Morgannwg University Health Board
64.8PercentageAge related macula degeneration2023-24Swansea Bay University Health Board
10.4PercentageDiabetic eye disease2023-24Swansea Bay University Health Board
20NumberDiabetic eye disease2023-24Aneurin Bevan University Health Board
6NumberDiabetic eye disease2023-24Cardiff and Vale University Health Board
17.1PercentageGlaucoma2023-24Cardiff and Vale University Health Board
68.8PercentageAge related macula degeneration2023-24Betsi Cadwaladr University Health Board
26NumberDiabetic eye disease2023-24Swansea Bay University Health Board
21.7PercentageGlaucoma2023-24Cwm Taf Morgannwg University Health Board
65.1 [t]PercentageAge related macula degeneration2023-24Wales
19NumberDiabetic eye disease2023-24Cwm Taf Morgannwg University Health Board
21.0PercentageGlaucoma2023-24Aneurin Bevan University Health Board
109 [t]NumberDiabetic eye disease2023-24Wales
18NumberDiabetic eye disease2023-24Betsi Cadwaladr University Health Board
6NumberDiabetic eye disease2023-24Powys Teaching Health Board
39NumberGlaucoma2023-24Hywel Dda University Health Board
17.5PercentageGlaucoma2023-24Hywel Dda University Health Board
70.6PercentageAge related macula degeneration2023-24Hywel Dda University Health Board
18.6 [t]PercentageGlaucoma2023-24Wales
5.3PercentageDiabetic eye disease2023-24Betsi Cadwaladr University Health Board
56.8PercentageAge related macula degeneration2023-24Aneurin Bevan University Health Board
17.0PercentageGlaucoma2023-24Betsi Cadwaladr University Health Board
196NumberAge related macula degeneration2023-24Betsi Cadwaladr University Health Board
35NumberAge related macula degeneration2023-24Powys Teaching Health Board
14NumberDiabetic eye disease2023-24Hywel Dda University Health Board
62.5PercentageAge related macula degeneration2023-24Powys Teaching Health Board
129NumberAge related macula degeneration2023-24Cwm Taf Morgannwg University Health Board
108NumberAge related macula degeneration2023-24Aneurin Bevan University Health Board
18.2PercentageGlaucoma2023-24Powys Teaching Health Board
17.9PercentageGlaucoma2023-24Swansea Bay University Health Board
85 [t]NumberDiabetic eye disease2022-23Wales
17.3 [t]PercentageGlaucoma2022-23Wales
22NumberDiabetic eye disease2022-23Betsi Cadwaladr University Health Board
17.1PercentageGlaucoma2022-23Betsi Cadwaladr University Health Board
Showing 1 to 100 of 624 rows
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Main information

Most recent update
30 September 2025
Next update expected
September 2026
Designation
Official statistics
Data provider 1
Moorfields Eye Hospital
Data source 1
No specific source from data provider
Data provider 2
NHS Wales Shared Services Partnership
Data source 2
Certificate of Vision Impairment (CVI) form
Time period covered
April 2012 to March 2025

Data notes

Overview

Summary of dataset and variables

This dataset shows the number and percentage of people newly certified as severely sight impaired or sight impaired with a certificate of vision impairment (CVI) and focuses on three main causes of sight impairment: age related macula degeneration, glaucoma and diabetic eye disease.

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 selected cause of sight impairment, health board, and financial year. Certification is a formal process that identifies individuals with significant vision loss who may be eligible for additional support. The dataset provides insight into the main causes of new certifications across different health boards and 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. Only individuals above condition-specific age thresholds are included in the counts: those aged 12 and over for diabetic eye disease, 40 and over for glaucoma, and 65 and over for age-related macular degeneration (AMD). For each health board and Wales overall, counts of certifications for each cause are calculated alongside percentages representing the proportion of all certifications in the corresponding area.

Statistical quality

For each cause the counts include sight loss due to each cause as the main cause, or if no main cause then as a contributory cause, which could result in individuals being counted again under other conditions if there is more than one contributory cause. 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.

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Published by

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

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