AI eye scans could revolutionise early dementia diagnosis
The NeurEYE team’s algorithm uses retinal scans to reveal signs of neurodegenerative diseases before symptoms emerge, offering patients crucial time to prepare.
Researchers from Scotland are developing an AI tool that could enable high-street opticians to detect early signs of dementia using retinal photographs. By analysing nearly a million eye scans, the NeurEYE team, led by the University of Edinburgh, has created an algorithm capable of assessing the health of blood vessels in the retina, which can reveal signs of neurodegenerative diseases such as Alzheimer’s long before symptoms arise. This innovation could revolutionise early diagnosis, offering patients and their families valuable time to prepare and adapt.
The retina’s blood vessels are small and fine, making them ideal indicators of health issues, including conditions affecting the brain. Professor Baljean Dhillon of the University of Edinburgh highlighted the retina’s potential as a “biological barometer” for brain health, accessible through simple, inexpensive eye examination equipment. The research team hopes to roll out a prototype later this year, with plans for wider implementation in 2026, allowing opticians nationwide to integrate this tool into routine eye tests.
Early diagnosis of dementia can significantly improve patient care and family preparedness. Retired engineer David Steele, whose mother’s Alzheimer’s was detected too late, believes such technology could have spared his family years of struggle. Specialist optometrist Ian Cameron also emphasised the importance of regular eye tests, noting that advancements in eye care can lead to earlier detection of various conditions, from diabetes to neurological disorders, ultimately improving overall health outcomes.