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

The researchers measured improvements in the participants’ vision by scoring their color contrast vision, or the ability to differentiate between colors.

All the participants had normal color contrast vision at the start of the trial.

The color contrast vision of the participants was tested 3 hours after red light exposure, and again 1 week later.

The color contrast vision of the participants who were exposed to red light in the morning improved by an average of 17%.

The researchers found that the application of light must occur in the morning to have an effect.

They found no improvement in color contrast vision in the participants receiving light exposure in the afternoon.

The study also revealed that 3 minutes is the optimal length for light exposure and that the vision improvement lasts up to 1 week.

The implications of the study extend beyond vision improvement, according to Prof.