The study detected physical differences in the eyes of people with Parkinson's and those without the condition.
Read moreBBC News Technology

X removes Holocaust-denying post after criticism
The Auschwitz Museum reported the post but was initially told by X it did not break safety rules.
Top Stories

X removes Holocaust-denying post after criticism
The Auschwitz Museum reported the post but was initially told by X it did not break safety rules.

Trudeau slams Facebook over wildfire news ban
The prime minister accuses the company of putting profits over safety amid Canada's wildfire crisis.

UK microchip giant files to sell shares in US
Arm files papers to list in New York after opting against London, in a blow to the UK.

Pioneering wind-powered cargo ship sets sail
Inventors hope maiden voyage will help usher in new era of greener shipping.

The streamers making big money by filming themselves sleeping
One streamer tells us he has stopped making sleep videos after it affected his mental health.

'Sexist' Alexa didn't answer Lionesses win question
Amazon admits error after voice assistant replied to semi-final query by saying there was no match.

Twitter, now X, to remove blocking feature - Musk
Elon Musk says the feature "makes no sense", but users are concerned about protection from abuse.
Featured Contents

X removes Holocaust-denying post after criticism
The Auschwitz Museum reported the post but was initially told by X it did not break safety rules.

Trudeau slams Facebook over wildfire news ban
The prime minister accuses the company of putting profits over safety amid Canada's wildfire crisis.

UK microchip giant files to sell shares in US
Arm files papers to list in New York after opting against London, in a blow to the UK.

Pioneering wind-powered cargo ship sets sail
Inventors hope maiden voyage will help usher in new era of greener shipping.

The streamers making big money by filming themselves sleeping
One streamer tells us he has stopped making sleep videos after it affected his mental health.

'Sexist' Alexa didn't answer Lionesses win question
Amazon admits error after voice assistant replied to semi-final query by saying there was no match.

Twitter, now X, to remove blocking feature - Musk
Elon Musk says the feature "makes no sense", but users are concerned about protection from abuse.

Trudeau slams Facebook over wildfire news ban
The prime minister accuses the company of putting profits over safety amid Canada's wildfire crisis.

UK microchip giant files to sell shares in US
Arm files papers to list in New York after opting against London, in a blow to the UK.

Pioneering wind-powered cargo ship sets sail
Inventors hope maiden voyage will help usher in new era of greener shipping.
Watch/Listen
Latest Updates
By Ben Price
BBC News
By Will Glennon & Chloe Harcombe
BBC News
By Emily McGarvey
BBC News
By Christine Ro
Technology of Business reporter
By Michael Race
Business reporter, BBC News
Video content
Video caption: Justin Trudeau criticises Facebook blocking news during wildfire emergency The Canadian PM said that the company 'is choosing corporate profits' in times of emergency.
By Nadine Yousif
BBC News, Toronto
By Chris Vallance
Technology reporter, BBC News
By Hamzah Abbas
BBC News
Video content
Video caption: Reading Festival preparations underway A drone pilot has taken a sneak peek of the preparations for Reading Festival.
By Tom Singleton
Technology reporter, BBC News
By Charlotte Andrews & Trevor Bevins
BBC News
By Andrea Murad
Business reporter
By George Wright
BBC News
By Nicola Bryan
BBC News
By Tom Gerken
Technology reporter
By Faarea Masud
Business reporter
By Nadine Yousif
BBC News, Toronto
By Jake Horton, Olga Robinson & Daniele Palumbo
BBC Verify