Do I really need sunscreen?

Coydon, I can only speak to a wee bit of your post-- it has gotten very hard to find glass lenses lately, I have a "thick" (ahem, coke-bottle) prescription and in the past the excuse was that glass would make glasses be so heavy as to be unwearable, thus polycarbonate lenses (and polycarbonate is a kind of plastic, tomato-tomahto). There are some places that do sell them, found if you search online (there is a very useful Reddit thread also along these lines).
As for the coatings, I do like me a Transitions lens (automatic sunglasses) but I don't worry about other treatments. I figure if the UV is strong enough to harm me I need to get the heck out of the sun anyway.

From what I understand, normal glass blocks most UVB and a small amount of UVA. Plastic does not, which is why the eyeglass manufacturers talk a lot about "safe coatings" if the lenses now are mostly made of plastic.

Almond Thompson wrote:XD not old enough to have wrinkles yet! wouldn't the sunscreen interfere with natural vitamin d absorption?

I've worn sunscreen all my life when I've been outside and have not had issues with Vitamin D Synthesis/Deficiency. If you are outside, you should wear sunscreen. There are even products with built in SPF (lotions and moisturizers) so it's one less thing to worry about. In terms of natural sunscreen, I would definitely see what the SPF is of what you are using. Some people have tried tallow, and that just doesn't work (no SPF). The thing I would point out is that there are certain areas that get worse sunburn/more people have skin cancer. If I for any reason needed to go outside but didn't have the time to apply some, I would make sure my nose, ears, and shoulders are covered. You can wear a hat/cover up in addition to sunscreen. That said, I would consider sunscreen a part of daily skincare and wearing a hat/covering sunburn-prone areas to be a "long day out in the sun" type of thing.

Tereza Okava wrote:From what I understand, normal glass blocks most UVB and a small amount of UVA. Plastic does not, which is why the eyeglass manufacturers talk a lot about "safe coatings" if the lenses now are mostly made of plastic.  

I would add that polycarbonate is a bit different from other plastics. It effectively blocks UVA and UVB with no coatings. This is clearly stated on the ANSI and CSA ratings on safety glasses.

Tereza Okava wrote:Coydon, I can only speak to a wee bit of your post-- it has gotten very hard to find glass lenses lately, I have a "thick" (ahem, coke-bottle) prescription and in the past the excuse was that glass would make glasses be so heavy as to be unwearable, thus polycarbonate lenses (and polycarbonate is a kind of plastic, tomato-tomahto). There are some places that do sell them, found if you search online (there is a very useful Reddit thread also along these lines).

Is that the thread on the EssilorLuxottica "monopoly"? It was the only place I found mention of glass lenses there, apparently don't know how to search Reddit well...
https://www.reddit.com/r/ValueInvesting/comments/1flxfly/the_hidden_monopoly_in_the_eyewear_industry/

I don't think so (I did listen to a podcast about that once though.. ). I'm not on my computer so can't be sure but I literally just searched 'glass lenses for eyeglasses' and it was the first  result. Smth like "does anyone make glass lenses". Typical reddit with a lot of crankiness but a few links that worked for me and might be worth investigating.

Does anyone have tips for restoring tanned skin? I wore flip-flops a lot last summer and even after the whole winter in socks and sneakers, the sun tan never goes away. Exposed areas are also rough and wrinkly.
Once I wore very long skirt that covered my feet. My legs were sweating; the hems got soiled and soggy and a few bees got trapped inside and stung me badly.