Caution is still a good idea. Too much UV causes sunburn and can lead to eye problems if you brave bright sunlight without sunglasses. Glare off snowfields is damaging to sight. The sunlight cycle stimulates the production of melatonin by triggering the pineal gland. UV does not get to the retina; it is mostly absorbed by the internal fluids of the eye---and in any case, our retina cannot detect it.
Yeah I’m a mailman and my familial heritage is mostly northern cultures. I generally try and get ~2 hours of morning sun then cover up as much as possible. Long sleeves and I wear a small amount of sunscreen only on my face and neck.
I agree that uv can be bad for your eyes but I quit wearing sunglasses a couple years ago. IMO the problem isnt so much the sun but rather the environment we live. The light reflecting off concrete is extremely bright compared to a grassy field. I have to squint or block my eyes when walking in a concrete parking lot but feel fine in grassy areas.
With that being said, I wear contact lenses which do block uv. Not ideal imo but I don’t think they make ones that don’t block uv
Having worked on OTC sunscreen pharmaceuticals, I concur. Most of the chemicals I worked with in 2008-2012 are cancer agents now. As far as sunglasses, the squint mechanism caused by bright light helps trigger vitamin D production - sunglasses inhibit that - don't wear them anymore.
UV blocking is deliberate in the design. Same thing for intraocular lenses, although when I was working with them it was probably an inherent trait of the material we were making them from (polymethyl methacrylate).
Caution is still a good idea. Too much UV causes sunburn and can lead to eye problems if you brave bright sunlight without sunglasses. Glare off snowfields is damaging to sight. The sunlight cycle stimulates the production of melatonin by triggering the pineal gland. UV does not get to the retina; it is mostly absorbed by the internal fluids of the eye---and in any case, our retina cannot detect it.
Absolutely...just avoid the dangerous hours between 11 - 2
Yeah I’m a mailman and my familial heritage is mostly northern cultures. I generally try and get ~2 hours of morning sun then cover up as much as possible. Long sleeves and I wear a small amount of sunscreen only on my face and neck.
I agree that uv can be bad for your eyes but I quit wearing sunglasses a couple years ago. IMO the problem isnt so much the sun but rather the environment we live. The light reflecting off concrete is extremely bright compared to a grassy field. I have to squint or block my eyes when walking in a concrete parking lot but feel fine in grassy areas.
With that being said, I wear contact lenses which do block uv. Not ideal imo but I don’t think they make ones that don’t block uv
Sunscreen is full of cancer causing chemicals. Probably a good idea to stop using that.
Having worked on OTC sunscreen pharmaceuticals, I concur. Most of the chemicals I worked with in 2008-2012 are cancer agents now. As far as sunglasses, the squint mechanism caused by bright light helps trigger vitamin D production - sunglasses inhibit that - don't wear them anymore.
I seldom wore sunglasses only when driving. Throwing them away now!
How does squinting from bright sun increase d production? D comes from the Sun, which gets filtered out as it enters your car through glass.
UV blocking is deliberate in the design. Same thing for intraocular lenses, although when I was working with them it was probably an inherent trait of the material we were making them from (polymethyl methacrylate).