Researchers have found that just three minutes of observing deep red light once a week can significantly improve retinal function, especially in the elderly.

This method acts on the mitochondria of photoreceptor cells, improving their energy potential and contributing to the restoration of visual function.

In experiments involving healthy volunteers, it was found that exposure to red light with a wavelength of 670 nanometers improves contrast vision by 17%. Interestingly, the greatest effect is achieved if the procedure is performed in the morning between 8 and 9 o'clock.

This discovery will help to improve approaches in the treatment of age-related eye diseases, and offers a simple but effective therapy to maintain vision.