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

Standard shorthand is used in this table: [c] = confidential information, [t] = total.

Data values	Data description	Cause of certification	Year	Area
32	Number	Diabetic eye disease	2019-20	Aneurin Bevan University Health Board
0	Number	Diabetic eye disease	2024-25	Powys Teaching Health Board
13	Number	Diabetic eye disease	2015-16	Aneurin Bevan University Health Board
17	Number	Diabetic eye disease	2019-20	Cwm Taf Morgannwg University Health Board
0	Number	Diabetic eye disease	2022-23	Powys Teaching Health Board
26	Number	Diabetic eye disease	2024-25	Betsi Cadwaladr University Health Board
22	Number	Diabetic eye disease	2013-14	Aneurin Bevan University Health Board
13	Number	Diabetic eye disease	2015-16	Cwm Taf University Health Board
9	Number	Diabetic eye disease	2017-18	Cwm Taf University Health Board
27	Number	Diabetic eye disease	2019-20	Swansea Bay University Health Board
6	Number	Diabetic eye disease	2021-22	Powys Teaching Health Board
22	Number	Diabetic eye disease	2022-23	Betsi Cadwaladr University Health Board
18	Number	Diabetic eye disease	2023-24	Betsi Cadwaladr University Health Board
84 [t]	Number	Diabetic eye disease	2024-25	Wales
26	Number	Diabetic eye disease	2012-13	Aneurin Bevan University Health Board
[c]	Number	Diabetic eye disease	2013-14	Cwm Taf University Health Board
7	Number	Diabetic eye disease	2014-15	Cwm Taf University Health Board
26	Number	Diabetic eye disease	2015-16	Abertawe Bro Morgannwg University Health Board
7	Number	Diabetic eye disease	2016-17	Cwm Taf University Health Board
17	Number	Diabetic eye disease	2017-18	Abertawe Bro Morgannwg University Health Board
32	Number	Diabetic eye disease	2018-19	Abertawe Bro Morgannwg University Health Board
[c]	Number	Diabetic eye disease	2019-20	Hywel Dda University Health Board
9	Number	Diabetic eye disease	2020-21	Cwm Taf Morgannwg University Health Board
23	Number	Diabetic eye disease	2021-22	Betsi Cadwaladr University Health Board
9	Number	Diabetic eye disease	2021-22	Cwm Taf Morgannwg University Health Board
85 [t]	Number	Diabetic eye disease	2022-23	Wales
10	Number	Diabetic eye disease	2022-23	Cwm Taf Morgannwg University Health Board
109 [t]	Number	Diabetic eye disease	2023-24	Wales
26	Number	Diabetic eye disease	2023-24	Swansea Bay University Health Board
6	Number	Diabetic eye disease	2023-24	Cardiff and Vale University Health Board
[c]	Number	Diabetic eye disease	2012-13	Powys Teaching Health Board
[c]	Number	Diabetic eye disease	2012-13	Cwm Taf University Health Board
16	Number	Diabetic eye disease	2013-14	Betsi Cadwaladr University Health Board
22	Number	Diabetic eye disease	2013-14	Abertawe Bro Morgannwg University Health Board
15	Number	Diabetic eye disease	2014-15	Betsi Cadwaladr University Health Board
24	Number	Diabetic eye disease	2014-15	Abertawe Bro Morgannwg University Health Board
98 [t]	Number	Diabetic eye disease	2015-16	Wales
9	Number	Diabetic eye disease	2015-16	Hywel Dda University Health Board
21	Number	Diabetic eye disease	2016-17	Betsi Cadwaladr University Health Board
22	Number	Diabetic eye disease	2016-17	Abertawe Bro Morgannwg University Health Board
85 [t]	Number	Diabetic eye disease	2017-18	Wales
8	Number	Diabetic eye disease	2017-18	Hywel Dda University Health Board
95 [t]	Number	Diabetic eye disease	2018-19	Wales
9	Number	Diabetic eye disease	2018-19	Hywel Dda University Health Board
10	Number	Diabetic eye disease	2018-19	Cardiff and Vale University Health Board
[c]	Number	Diabetic eye disease	2019-20	Powys Teaching Health Board
11	Number	Diabetic eye disease	2020-21	Betsi Cadwaladr University Health Board
15	Number	Diabetic eye disease	2020-21	Swansea Bay University Health Board
[c]	Number	Diabetic eye disease	2020-21	Cardiff and Vale University Health Board
89 [t]	Number	Diabetic eye disease	2021-22	Wales
9	Number	Diabetic eye disease	2021-22	Hywel Dda University Health Board
6	Number	Diabetic eye disease	2021-22	Swansea Bay University Health Board
24	Number	Diabetic eye disease	2021-22	Aneurin Bevan University Health Board
11	Number	Diabetic eye disease	2021-22	Cardiff and Vale University Health Board
11	Number	Diabetic eye disease	2022-23	Hywel Dda University Health Board
19	Number	Diabetic eye disease	2022-23	Swansea Bay University Health Board
18	Number	Diabetic eye disease	2022-23	Aneurin Bevan University Health Board
5	Number	Diabetic eye disease	2022-23	Cardiff and Vale University Health Board
6	Number	Diabetic eye disease	2023-24	Powys Teaching Health Board
14	Number	Diabetic eye disease	2023-24	Hywel Dda University Health Board
19	Number	Diabetic eye disease	2023-24	Cwm Taf Morgannwg University Health Board
20	Number	Diabetic eye disease	2023-24	Aneurin Bevan University Health Board
98 [t]	Number	Diabetic eye disease	2012-13	Wales
26	Number	Diabetic eye disease	2012-13	Betsi Cadwaladr University Health Board
10	Number	Diabetic eye disease	2012-13	Hywel Dda University Health Board
14	Number	Diabetic eye disease	2012-13	Abertawe Bro Morgannwg University Health Board
[c]	Number	Diabetic eye disease	2012-13	Cardiff and Vale University Health Board
95 [t]	Number	Diabetic eye disease	2013-14	Wales
8	Number	Diabetic eye disease	2013-14	Powys Teaching Health Board
16	Number	Diabetic eye disease	2013-14	Hywel Dda University Health Board
[c]	Number	Diabetic eye disease	2013-14	Cardiff and Vale University Health Board
86 [t]	Number	Diabetic eye disease	2014-15	Wales
[c]	Number	Diabetic eye disease	2014-15	Powys Teaching Health Board
8	Number	Diabetic eye disease	2014-15	Hywel Dda University Health Board
25	Number	Diabetic eye disease	2014-15	Aneurin Bevan University Health Board
[c]	Number	Diabetic eye disease	2014-15	Cardiff and Vale University Health Board
22	Number	Diabetic eye disease	2015-16	Betsi Cadwaladr University Health Board
6	Number	Diabetic eye disease	2015-16	Powys Teaching Health Board
7	Number	Diabetic eye disease	2015-16	Cardiff and Vale University Health Board
81 [t]	Number	Diabetic eye disease	2016-17	Wales
[c]	Number	Diabetic eye disease	2016-17	Powys Teaching Health Board
[c]	Number	Diabetic eye disease	2016-17	Hywel Dda University Health Board
16	Number	Diabetic eye disease	2016-17	Aneurin Bevan University Health Board
6	Number	Diabetic eye disease	2016-17	Cardiff and Vale University Health Board
22	Number	Diabetic eye disease	2017-18	Betsi Cadwaladr University Health Board
9	Number	Diabetic eye disease	2017-18	Powys Teaching Health Board
13	Number	Diabetic eye disease	2017-18	Aneurin Bevan University Health Board
6	Number	Diabetic eye disease	2017-18	Cardiff and Vale University Health Board
19	Number	Diabetic eye disease	2018-19	Betsi Cadwaladr University Health Board
[c]	Number	Diabetic eye disease	2018-19	Powys Teaching Health Board
[c]	Number	Diabetic eye disease	2018-19	Cwm Taf University Health Board
14	Number	Diabetic eye disease	2018-19	Aneurin Bevan University Health Board
114 [t]	Number	Diabetic eye disease	2019-20	Wales
16	Number	Diabetic eye disease	2019-20	Betsi Cadwaladr University Health Board
14	Number	Diabetic eye disease	2019-20	Cardiff and Vale University Health Board
58 [t]	Number	Diabetic eye disease	2020-21	Wales
5	Number	Diabetic eye disease	2020-21	Powys Teaching Health Board
[c]	Number	Diabetic eye disease	2020-21	Hywel Dda University Health Board
14	Number	Diabetic eye disease	2020-21	Aneurin Bevan University Health Board
8	Number	Diabetic eye disease	2024-25	Hywel 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:
  • Eye Care Statistics
  • Quality Report

Published by

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

Metadata

The metadata for this dataset is not included when you download the data. You can download this separately. This contains all the information from the 'About this dataset' tab.