Re[2]: [at-l] Checking for polarized lenses

[rafeb@adelphia.net (rafeb@adelphia.net)]

On 2 Mar 2002 at 15:08, Bob C. wrote:

>  I've never worn sun glasses for any length of time. I've tried to from time to
>  time, but they just filter out too much of what I go into the outdoors to see.


Actually, a good pair of polarized glasses will allow 
you to see things that you wouldn't have seen with 
the "naked eye" -- by killing the glare on reflective 
surfaces.

More importantly, though, it's been pretty well 
established, I think, that using sunglasses is 
good for the eyes, in the long run.  And I think 
that's especially true what with the thinning of 
the ozone layer, since more UV is now reaching 
the surface of the earth -- and especially so at 
altitudes well above sea level.

Better still, wearing sunglasses does not impact 
the trail or its ecology, in any way <g>

If you're concerned about the general "dimming" 
of the view, try to find a pair of photochromic 
glasses -- ie., the kind that automatically adjust 
their opacity according to the ambient light.

I don't wear sunglasses when I'm deep in the 
woods, protected by the canopy.  But when I'm 
up on a ridge, exposed to direct sunlight, I 
find them quite comforting.  At my age (not 
quite 50) I really don't like being outdoors, 
in the sun, without them.


rafe b.
aka terrapin