In reply to Mark Torrance:
> Also, is this really true “Most normal glasses filter out the vast majority of UV wavelengths anyway”? Does it apply to contacts.
Ask the manufacturer. I paid a bit more for lenses with a higher refractive index because I am very short sighted. The result is thinner lenses, the optician told me that these lenses also have a coating that filters out all UV. I have been told on a number of occasions that bog standard glasses filter out a lot of UV and mean you have to try that much harder to damage your eyes.
So far as chancing it is concerned, I think you're crazy, its not worth the risk.
I read that somebody who was on an everest summit day had been wearing glasses the entire day except when he removed them a couple of times to focus his camera to take pictures. At the end of the day he was blind and in agony, he had to be slowly guided down the mountain over the following days (his blindness was only temporary).
The ozone layer is gettin thinner, not thicker
(said so in the newspaper a few days ago, recovery has all gone tits up because of some high altitude unusual cloud nonsense)