Woman having vision check

Red light therapy could restore naturally declining eyesight

A study by the University College London has shown that exposing eyes to a constant deep red light for three minutes each morning can drastically improve naturally worsening vision.

The morning exposure to red light renews the mitochondria cells in the retina which improved the colour contrast by up to 17 percent on average.

Professor Glen Jeffery, the study’s lead author said: “We demonstrate that one single exposure to long-wave deep red light in the morning can significantly improve declining vision, which is a major health and wellbeing issue, affecting millions of people globally.

“The technology is simple and very safe; the energy delivered by 670nm long wave light is not that much greater than that found in natural environmental light.”

Human eyesight naturally deteriorates with age as retina cells start aging in people 40 and over.

The study included 20 participants between the ages of 34 and 70. Each participant was exposed to LED devices which emitted light energy of 8mW/cm2.

Every person within the study group was exposed to 670mm of deep red light for three minutes between the hours of 8am and 9am.

Researchers also repeated the study at 12pm which showed no colour vision improvements at all.

The study found that the improvement was more significant in older subjects who had a 20 per cent improvement on average. The effect of the single dose of exposure lasted a week.

The light exposure targeted cones photoreceptors which are responsible for adjusting vision at higher light levels and controlling colour vision.

Whilst the study revealed that there was a clear improvement in some areas across some subjects within the group tested, others did not experience as greater improvement.

NHE June-July 2022

NHE May/June 22

Is AI the Future?

The new edition of NHE’s e-magazine highlights the latest innovations making the NHS more environmentally friendly; the health sector’s digital transformation journey; the latest advancements in procurement, how to stay safe in the current climate, and more with articles from the likes of Dame Linda Pollard, Professor Sir Stephen Holgate, Brigadier Robin Simpson and many more.


View all videos
National Health Executive Presents

National Health Executive Presents

NHE365 Virtual Events

NHE has created a full calendar of events to address the most important issues that influence the delivery of healthcare services. Over 365 days you'll have the opportunity to hear from a range of highly motivating, informative and inspirational speakers. These speakers will equip you with the knowledge and unique insight to enable you to overcome the challenges that you face.

Finger on the Pulse

Ep 14. Health messaging is a science, Professor Craig Jackson

On Episode 14 of NHE's Finger on the Pulse podcast, we're joined by Professor Craig Jackson, Professor of Occupational Health Psychology
Birmingham City University to discuss the coronavirus pandemic, the health messaging around it and how those in power have missed a trick by overlooking the key role of psychology in informing the public of restrictions, measures and the ever-changing situation

More articles...

View all