红光好。前几日的报道

New research suggests that exposure to red light has benefits for a person’s eyesight. Luis Gustavo López/EyeEm/Getty Images

A study finds that a brief weekly exposure to red light can improve declining vision.

The light “switches on” mitochondria in the retina.

The finding has broad implications, because mitochondria are the cells’ energy source.

A study from researchers at University College London in the United Kingdom found that a brief application of the right kind of light can improve declining vision.

The study showed that a 3-minute exposure to deep red light in the morning once per week can improve vision that has declined due to aging, for up to 1 week.

The researchers began their investigation with flies and mice, before work with the study’s human participants began. Lead author Prof. Glen Jeffery told Medical News Today, “It does not really matter what the animal is or, to some extent, what the cell is, the light will impact.”

The deep red light the researchers used was a specific hue, with a wavelength of 670 nanometers.

The study appears in the journal Scientific ReportsTrusted Source.