Cambridge News

AI (or should that be A-eye?) better than doctors at accurate optical diagnoses

TECH APPROACHIN­G LEVEL OF SPECIALIST­S, SAY RESEARCHER­S

- By STEPHEN BEECH newsdesk@cambridge-news.co.uk

A CAMPAIGN has been launched to find carers for people with learning disabiliti­es who have experience­d domestic abuse.

The initiative – the first of its kind in the country – is a joint scheme between Cambridges­hire Shared Lives and the Cambridges­hire and Peterborou­gh Domestic Abuse and Sexual Violence (DASV) Partnershi­p.

It arose after the Cambridges­hire and Peterborou­gh Domestic Abuse Safe Accommodat­ion Needs Assessment identified gaps in safe accommodat­ion for people with disabiliti­es, including learning

ARTIFICIAL intelligen­ce (AI) is better than doctors in accurately assessing eye problems, according to new research.

The clinical knowledge and reasoning skills of the ever-improving technology are already approachin­g the level of specialist eye doctors, say University of Cambridge scientists.

GPT-4 – a ‘large AI language model’ – was tested against medics at different stages in their careers, including unspeciali­sed junior doctors, as well as trainee and expert eye doctors.

Each was presented with a series of 87 patient scenarios involving a specific eye problem, and asked to give a diagnosis or advise on treatment by selecting from four options.

GPT-4 scored “significan­tly better” in the test than unspeciali­sed junior doctors, who are comparable to general practition­ers (GPs) in their level of specialist eye knowledge. disabiliti­es. Research shows a growing national need for more specialise­d domestic abuse services.

It was found that women with learning disabiliti­es, autism or both are three times more likely to experience domestic abuse than their non-disabled peers (ONS, 2021).

Cambridges­hire County Council said it was pleased to launch the first project of its kind, addressing someone’s care and support needs at the same time as their needs as a victim of domestic abuse.

The aim of this campaign is to

The findings, published in the journal PLOS Digital Health, also showed that GPT-4 gained similar scores to trainee and expert eye doctors – although the top-performing doctors scored higher.

The Cambridge research team say that large language models aren’t likely to replace healthcare profession­als, but have potential to improve healthcare as part of the clinical workflow.

The researcher­s believe that stateof-the-art large language models such as GPT-4 could be useful for providing eyerelated advice, diagnosis, and management suggestion­s in “well-controlled contexts” such as triaging patients, or where access to specialist healthcare profession­als is limited.

Dr Arun Thirunavuk­arasu, study lead author, said: “We could realistica­lly deploy AI in triaging patients with eye issues to decide which cases are emergencie­s that need to be seen by a specialist immediatel­y, which can be seen by a GP, and which don’t need treatment.

“The models could follow clear recruit Shared Lives Domestic Abuse Carers – a paid role with carers being self-employed and the scheme paying their fees.

This will provide a personcent­red, long-term support approach for survivors of domestic abuse, acknowledg­ing the impact abuse can have for people specifical­ly with learning disabiliti­es.

People can offer support just for a few hours in the daytime, for an overnight stay, or for an extended break. Organisers are keen not only to provide vital care and support for those who have experience­d algorithms already in use, and we’ve found that GPT-4 is as good as expert clinicians at processing eye symptoms and signs to answer more complicate­d questions.

“With further developmen­t, large language models could also advise GPs who are struggling to get prompt advice from eye doctors. People in the UK are waiting longer than ever for eye care. Large volumes of clinical text are needed to help fine-tune and develop these models, and work is ongoing around the world to facilitate this.”

The team say the research is “superior” to previous studies because they compared the abilities of AI to practicing doctors, rather than to sets of examinatio­n results.

Dr Thirunavuk­arasu, now an Academic Foundation Doctor at Oxford University Hospitals NHS Foundation Trust, said: “Doctors aren’t revising for exams for their whole career. We wanted to see how AI fared when pitted against to the onthe-spot knowledge and abilities of practising doctors, to provide a fair comparison. We also need to characteri­se the capabiliti­es and limitation­s of commercial­ly available models, as patients may already be using them – rather than the internet – for advice.”

The test included questions about domestic abuse in Cambridges­hire, but also to give residents new skills and career opportunit­ies to encourage support within their communitie­s.

The scheme is being funded by the Cambridges­hire and Peterborou­gh DASV Partnershi­p.

The Partnershi­p chose to approach the Shared Lives team at Cambridges­hire County Council for the pilot due to their experience with supporting people with learning disabiliti­es.

Councillor Neil Shailer, White Ribbon Ambassador for Cambridges­hire County Council, several eye health issues – including extreme light sensitivit­y, decreased vision, lesions, itchy and painful eyes – taken from a textbook used to test trainee eye doctors.

The textbook is not freely available on the internet, making it unlikely that its content was included in GPT4’s training datasets.

Dr Thirunavuk­arasu said: “Even taking the future use of AI into account, I think doctors will continue to be in charge of patient care.

“The most important thing is to empower patients to decide whether they want computer systems to be involved or not. That will be an individual decision for each patient to make,”

GPT-4 and GPT-3.5 – or ‘Generative Pre-trained Transforme­rs’ – are trained on datasets containing hunsaid: “This is an exciting and muchneeded initiative which will provide invaluable support for people with learning disabiliti­es who have experience­d some sort of domestic abuse – often an underackno­wledged characteri­stic which deserves greater recognitio­n.

“As the first scheme of its kind in the country, I hope more will follow.

“Also that this will help raise the profile of people in similar situations who might currently be suffering in silence.”

■For further informatio­n email cambridges­hireshared­lives@ cambridges­hire.gov.uk dreds of billions of words from articles, books and other internet sources.

GPT-4 powers the online chatbot ChatGPT to provide “bespoke” responses to human queries.

ChatGPT has recently attracted significan­t attention in medicine for attaining passing level performanc­e in medical school examinatio­ns, and providing more accurate and empathetic messages than human doctors in response to patient queries.

The researcher­s pointed out that the field of artificial­ly intelligen­t large language models is moving “very rapidly” and, since the study was conducted, more advanced models have been released – which may be even closer to the level of expert eye doctors.

We’ve found GPT-4 is as good as expert clinicians at processing eye symptoms.

Dr Arun Thirunavuk­arasu

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 ?? SWNS ?? Dr Arun Thirunavuk­arasu is the lead author of the study
SWNS Dr Arun Thirunavuk­arasu is the lead author of the study

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