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New Certifications of Visual Impairment (CVI), rate per 100,000 population (12165) Metric type
- Help text
- New Certifications of Visual Impairment (CVI), rate per 100,000 population. The indicator relates to completions of CVI (all causes - preventable and non-preventable) by a consultant ophthalmologist, this initiates the process of registration with a local authority and leads to access to services.
Certification is voluntary so true rates may be higher than this analysis shows. Incidence may vary due to the risk of sight loss being influenced by health inequalities, including ethnic, deprivation and age profiles of the local population. People that have a Certificate of Vision Impairment from an ophthalmologist choose whether or not to be included in their local authority's register of blind or partially sighted people; registration is not automatic. Those that register become eligible for certain concessions. This means that not everybody that has been certified as having a vision impairment is recorded on a local authority register. There are also geographic variations in data collection; in some instances completion of additional examinations required to complete the certification are incentivised. Due to this, data collection levels may reflect non-completion of certification rather than just low incidence. Analysis by Moorfields has shown that there is greater than a 10% difference in 2010/11 between certifications of visual impairment (CVIs) and registrations with local authorities in these areas: Bath and North East Somerset, Birmingham, Blackburn with Darwen, Bolton, Bristol, Bromley, Bury, Croydon, Dudley, Hillingdon, Kingston-upon-Thames, Leeds, Luton, Manchester, Medway Towns, North Lincolnshire, North Somerset, Redbridge, Rochdale, Salford, Sandwell, South Gloucestershire, Staffordshire, Stockport, Stoke-on-Trent, Tameside, Trafford, Walsall, Warwickshire and Wiltshire - comparison to an expected value produced by indirect standardisation methods. Direct comparison to previous system of recording sight loss, BD8, should not be done due to the changes in the way in which this data was collected.
Counts between 1 and 4 are suppressed, and no indicator values have been calculated based on these small numbers with the exception of the England value where the total includes counts from local authorities whose numbers are suppressed for disclosure control and those certifications which had insufficient geographical information to identify a local authority.
- Modified
- 04 Aug 2021
- Data last updated
- 29 Apr 2024
- Also known as
- PHOF 4.12iv
- 4.12iv
- 4.12iv - Preventable sight loss - sight loss certifications
- E12d - Preventable sight loss - sight loss certifications_Persons_All ages
- E12d
- Short label
- Preventable sight loss - sight loss certifications (per 100,000)
- Status
- Live
- Output precision
- 1
- Polarity
- a low value is good
- Measure
- Per 100,000 poulation
- Dataset
- Calculated by PHE Knowledge and Intelligence Service (Epidemiology & Surveillance) from data provided by Moorfields Eye Hospital and Office for National Statistics
- Collection
- Public Health Outcomes Framework
- Source
- Office for Health Improvement and Disparities (OHID)
- is found in the following lists
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