Almost every clear lenses has UV protection which, if you are in the sun a lot, it's highly recommended.

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Highly recommended by who? Sunglasses Hut?

By me, an engineer who spent 6 years of my phd looking at human eye pathology + 15 years visiting optometry shops. I don't make any money on this. UV is bad.

So what are the uv light receptors doing in the eye and the skin?

There are no uv light receptors.

The thing I was thinking of is the POMC gene. It’s only stimulated by UV light and is in the retinal pigment epithelium. So in a way- there is a uv light receptor in the eye.

no, they aren't for sensing they are for chemical reactions

What the hell are you talking about?

You have UV cones in your eyes?

You must see a shitload of extra colours compared to the rest of us.

I saw a story about a woman with 4 colour cones, she could see like 10 thousand extra shades of green that normal people can't see. It's rare.

But a UV cone? In a human? Never heard of such a thing.

It’s called POMC and it’s in the retinal pigment epithelium.

True, over exposure can be bad. My mom got Pterygium (benign tissue that grows from UV exposure) from playing too much golf without wearing a hat. Surfers get that too.

Hats and sunglasses don’t make sense in the morning or afternoon, which is when you get the most impactful signals from the sunlight that keep your circadian rhythm in tune.

pssshhh as if you can defeat memes with qualifications and years is experience

It is bad, and becoming even worse.

Have you ever used a welder? It's kinda like looking at the sun.

Very high UV light, it will literally blind you.

They call it welders flash

Never used a welder. That’s more intense than sunlight. Protection is warranted. Sunglasses on a dog walk? Not necessarily