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

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Data valuesData descriptionCause of certificationYearArea
65.6PercentageAge related macula degeneration2019-20Aneurin Bevan University Health Board
42.3PercentageAge related macula degeneration2024-25Powys Teaching Health Board
69.9PercentageAge related macula degeneration2015-16Aneurin Bevan University Health Board
65.5PercentageAge related macula degeneration2019-20Cwm Taf Morgannwg University Health Board
79.5PercentageAge related macula degeneration2022-23Powys Teaching Health Board
67.2PercentageAge related macula degeneration2024-25Betsi Cadwaladr University Health Board
70.7PercentageAge related macula degeneration2013-14Aneurin Bevan University Health Board
78.3PercentageAge related macula degeneration2015-16Cwm Taf University Health Board
69.1PercentageAge related macula degeneration2017-18Cwm Taf University Health Board
68.7PercentageAge related macula degeneration2019-20Swansea Bay University Health Board
75.5PercentageAge related macula degeneration2021-22Powys Teaching Health Board
70.4PercentageAge related macula degeneration2022-23Betsi Cadwaladr University Health Board
68.8PercentageAge related macula degeneration2023-24Betsi Cadwaladr University Health Board
63.2 [t]PercentageAge related macula degeneration2024-25Wales
64.6PercentageAge related macula degeneration2012-13Aneurin Bevan University Health Board
78.4PercentageAge related macula degeneration2013-14Cwm Taf University Health Board
76.4PercentageAge related macula degeneration2014-15Cwm Taf University Health Board
72.9PercentageAge related macula degeneration2015-16Abertawe Bro Morgannwg University Health Board
67.5PercentageAge related macula degeneration2016-17Cwm Taf University Health Board
72.8PercentageAge related macula degeneration2017-18Abertawe Bro Morgannwg University Health Board
68.9PercentageAge related macula degeneration2018-19Abertawe Bro Morgannwg University Health Board
68.9PercentageAge related macula degeneration2019-20Hywel Dda University Health Board
68.0PercentageAge related macula degeneration2020-21Cwm Taf Morgannwg University Health Board
64.5PercentageAge related macula degeneration2021-22Betsi Cadwaladr University Health Board
61.1PercentageAge related macula degeneration2021-22Cwm Taf Morgannwg University Health Board
68.4 [t]PercentageAge related macula degeneration2022-23Wales
67.3PercentageAge related macula degeneration2022-23Cwm Taf Morgannwg University Health Board
65.1 [t]PercentageAge related macula degeneration2023-24Wales
64.8PercentageAge related macula degeneration2023-24Swansea Bay University Health Board
65.6PercentageAge related macula degeneration2023-24Cardiff and Vale University Health Board
65.2PercentageAge related macula degeneration2012-13Powys Teaching Health Board
81.0PercentageAge related macula degeneration2012-13Cwm Taf University Health Board
68.1PercentageAge related macula degeneration2013-14Betsi Cadwaladr University Health Board
71.5PercentageAge related macula degeneration2013-14Abertawe Bro Morgannwg University Health Board
72.0PercentageAge related macula degeneration2014-15Betsi Cadwaladr University Health Board
74.5PercentageAge related macula degeneration2014-15Abertawe Bro Morgannwg University Health Board
70.8 [t]PercentageAge related macula degeneration2015-16Wales
70.8PercentageAge related macula degeneration2015-16Hywel Dda University Health Board
59.6PercentageAge related macula degeneration2016-17Betsi Cadwaladr University Health Board
67.5PercentageAge related macula degeneration2016-17Abertawe Bro Morgannwg University Health Board
68.7 [t]PercentageAge related macula degeneration2017-18Wales
79.5PercentageAge related macula degeneration2017-18Hywel Dda University Health Board
69.2 [t]PercentageAge related macula degeneration2018-19Wales
72.8PercentageAge related macula degeneration2018-19Hywel Dda University Health Board
70.3PercentageAge related macula degeneration2018-19Cardiff and Vale University Health Board
66.7PercentageAge related macula degeneration2019-20Powys Teaching Health Board
69.5PercentageAge related macula degeneration2020-21Betsi Cadwaladr University Health Board
65.2PercentageAge related macula degeneration2020-21Swansea Bay University Health Board
67.7PercentageAge related macula degeneration2020-21Cardiff and Vale University Health Board
66.2 [t]PercentageAge related macula degeneration2021-22Wales
64.5PercentageAge related macula degeneration2021-22Hywel Dda University Health Board
69.1PercentageAge related macula degeneration2021-22Swansea Bay University Health Board
66.4PercentageAge related macula degeneration2021-22Aneurin Bevan University Health Board
69.6PercentageAge related macula degeneration2021-22Cardiff and Vale University Health Board
69.0PercentageAge related macula degeneration2022-23Hywel Dda University Health Board
64.2PercentageAge related macula degeneration2022-23Swansea Bay University Health Board
67.9PercentageAge related macula degeneration2022-23Aneurin Bevan University Health Board
67.2PercentageAge related macula degeneration2022-23Cardiff and Vale University Health Board
62.5PercentageAge related macula degeneration2023-24Powys Teaching Health Board
70.6PercentageAge related macula degeneration2023-24Hywel Dda University Health Board
62.9PercentageAge related macula degeneration2023-24Cwm Taf Morgannwg University Health Board
56.8PercentageAge related macula degeneration2023-24Aneurin Bevan University Health Board
69.4 [t]PercentageAge related macula degeneration2012-13Wales
71.6PercentageAge related macula degeneration2012-13Betsi Cadwaladr University Health Board
66.4PercentageAge related macula degeneration2012-13Hywel Dda University Health Board
69.3PercentageAge related macula degeneration2012-13Abertawe Bro Morgannwg University Health Board
67.4PercentageAge related macula degeneration2012-13Cardiff and Vale University Health Board
70.3 [t]PercentageAge related macula degeneration2013-14Wales
67.3PercentageAge related macula degeneration2013-14Powys Teaching Health Board
63.5PercentageAge related macula degeneration2013-14Hywel Dda University Health Board
70.4PercentageAge related macula degeneration2013-14Cardiff and Vale University Health Board
74.6 [t]PercentageAge related macula degeneration2014-15Wales
67.3PercentageAge related macula degeneration2014-15Powys Teaching Health Board
76.4PercentageAge related macula degeneration2014-15Hywel Dda University Health Board
77.1PercentageAge related macula degeneration2014-15Aneurin Bevan University Health Board
74.0PercentageAge related macula degeneration2014-15Cardiff and Vale University Health Board
68.0PercentageAge related macula degeneration2015-16Betsi Cadwaladr University Health Board
75.4PercentageAge related macula degeneration2015-16Powys Teaching Health Board
68.1PercentageAge related macula degeneration2015-16Cardiff and Vale University Health Board
66.1 [t]PercentageAge related macula degeneration2016-17Wales
76.4PercentageAge related macula degeneration2016-17Powys Teaching Health Board
72.7PercentageAge related macula degeneration2016-17Hywel Dda University Health Board
68.5PercentageAge related macula degeneration2016-17Aneurin Bevan University Health Board
60.9PercentageAge related macula degeneration2016-17Cardiff and Vale University Health Board
60.4PercentageAge related macula degeneration2017-18Betsi Cadwaladr University Health Board
67.3PercentageAge related macula degeneration2017-18Powys Teaching Health Board
65.8PercentageAge related macula degeneration2017-18Aneurin Bevan University Health Board
73.4PercentageAge related macula degeneration2017-18Cardiff and Vale University Health Board
69.2PercentageAge related macula degeneration2018-19Betsi Cadwaladr University Health Board
59.5PercentageAge related macula degeneration2018-19Powys Teaching Health Board
71.8PercentageAge related macula degeneration2018-19Cwm Taf University Health Board
66.7PercentageAge related macula degeneration2018-19Aneurin Bevan University Health Board
66.9 [t]PercentageAge related macula degeneration2019-20Wales
70.3PercentageAge related macula degeneration2019-20Betsi Cadwaladr University Health Board
60.5PercentageAge related macula degeneration2019-20Cardiff and Vale University Health Board
68.8 [t]PercentageAge related macula degeneration2020-21Wales
71.8PercentageAge related macula degeneration2020-21Powys Teaching Health Board
75.0PercentageAge related macula degeneration2020-21Hywel Dda University Health Board
66.4PercentageAge related macula degeneration2020-21Aneurin Bevan University Health Board
75.2PercentageAge related macula degeneration2024-25Hywel Dda 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.

Related reports

Published by

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

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