10 October 2025

New UK study finds widespread hidden sensory loss

One in four over-50s has vision impairment and three quarters have some hearing loss.

Groundbreaking research involving eye tests and hearing examinations with more than 500 over-50’s – the first of its kind in the UK – has revealed widespread and largely undetected sensory health issues, prompting urgent calls for funding for a wider study into the nation’s eye health and hearing.

Key findings

The pilot UK National Eye Health and Hearing Study (UKNEHS) found that: 

  • a quarter of adults aged 50 and over had vision impairment in at least one eye
  • 76% had hearing loss
  • 81% of participants had never undergone a hearing test

Researchers also found that 36% of people had undiagnosed glaucoma.

Research background

The study, which took place earlier this year, first tested vision and hearing loss among residents of care homes. In the second phase, people over the age of 50 in randomly selected postcodes across Cambridgeshire and Peterborough were invited to be tested.

The response rate of over 65% demonstrated strong public engagement and the feasibility of using mobile diagnostics and digital tools in community settings.

The College has supported the study from the very start. At an event in London on October 10, sensory loss charities, policy makers and researchers, discussed the findings and launched a campaign for the study to be extended across the UK. The researchers are calling for full support and funding from all four UK governments.

Concerning numbers

Rupert Bourne, Professor of Ophthalmology at Anglia Ruskin University (ARU) and principal investigator of the study, said: “These figures are deeply concerning. They show that sensory health is being overlooked, even among high-risk groups. We are missing critical opportunities to prevent avoidable sight and hearing loss.”

Sensory loss is estimated to cost the UK £58 billion annually, through lost productivity, increased care needs, and mental health consequences. However, the UK does not have up-to-date, population level data on vision and hearing health, falling behind nations including Nepal, Trinidad and Bangladesh.

Professor Bourne added: “This lack of data means we are unable to measure the true scale of unmet need or evaluate the effectiveness of existing services. This is not just a data gap - it is a public health infrastructure gap. The UK National Eye Health and Hearing Study aims to provide the baseline data needed to shape more effective, targeted, and equitable health and social care services.”

“The study’s findings highlight how many people are not attending for regular eye tests, where these eye conditions would be picked up, even though the over 60s are eligible for free NHS eye tests across the UK. 

“Optometrists in local optical practices deliver all essential national sight-testing, eye examination and vision correction services, and have the skills and capacity to treat more patients and help reduce hospital waiting lists, if more eye care services were funded in primary care.

“The eye health sector and our national health services need robust, population-level data in order to make effective and targeted plans for eye health provision in the future, to plan for the workforce we will need to provide care and prevention services, and to bring an end to avoidable sight loss.”

Michael Bowen, Director of Knowledge and Research, The College of Optometrists

Implications of untreated hearing loss

Jameel Muzaffar, ENT Consultant at University Hospitals Birmingham NHS Foundation Trust, said: “As we know from the study, lots of people have problems with hearing that they’re just not aware of.

“We know that untreated hearing loss, particularly in mid-life, is one of the biggest potentially modifiable risk factors for dementia.

“Loss of hearing separates people from people, it leads to social withdrawal, isolation, depression and, in the working age population, is associated with unemployment or underemployment.”

Related further reading

An examination of the links between smoking and eye disease.

Optometrists should be mindful of making suitable recommendations about cosmetic use and its subsequent removal and this paper provides guidance on its effects on ocular health.

What the NHS 10-Year Health Plan means for optometry in England