Want Sharper Vision? Ignore This Mainstream Lie

For decades now, mainstream medicine has practically tried to bubblewrap you against the sun.

They want you covered in head to toe like a mummy – and wearing sunglasses, too – every time you step outside.

Avoiding the sun is no way to live life – and it’s no way to stay healthy, either.

I’ve warned you over the years how avoiding the sun can disrupt your circadian rhythm and send your vitamin D levels plummeting.

Now, new science is exposing another common lie about sun exposure.

And if you want to keep your razor sharp vision as you age, you won’t want to miss this.

Sometimes it feels like the guidelines on sun exposure must have been written by the public relations departments at Coppertone or Ray-Ban…

Or some other sunscreen or sunglasses company that makes a buck by keeping you scared of the sun.

We’ve always been told that sunlight is harmful for our vision… that it’s something we need to protect ourselves from.

Well, wrong again.

In a recently published study, British scientists wanted to know if a special kind of light from the sun—deep red light, which we normally can’t see—can go through the human body and still positively affect our cells.

They simulated sunlight by having people lie down while a 850-nanometer red light shone on their backs for 15 minutes.

Sometimes their eyes were open, and sometimes their heads were covered so no light at all could reach their eyes.

Either way, 24 hours later the folks in the study had noticeable improvements in their vision – particularly in their ability to see colors and tell them apart.

That’s right… this research actually PROVED that sunlight IMPROVES our vision.

And it actually didn’t matter if the participants’ eyes were covered. That’s because our bodies can absorb the long-wave red light used in the study – and that light helps the energy-producing mitochondria in our cells work better and make more energy.

And, trust me, that can deliver health benefits that go well beyond vision.

I’ve talked often before about the importance of getting sun exposure in your eyes first thing every morning – and how that helps set your circadian rhythm for the day.

But this study really points to the importance of continuing to get sun throughout the day. The type of light wavelength studied for this research is most common in the mid-day.

And, again, nobody is telling you to look directly into the sun. In the morning, keep it in your peripheral vision – that will work well enough.

For the middle of the day, just try to get some sun exposure on uncovered skin. That will help the light get to your cells and give your mitochondria – and vision – a boost.

View Sources

Jeffery, G., Fosbury, R., Barrett, E., Hogg, C., Rodriguez Carmona, M., & Powner, M. B. (2025). Longer wavelengths in sunlight pass through the human body and have a systemic impact which improves vision. Scientific Reports, 15, Article 24435. https://doi.org/10.1038/s41598-025-09785-3