Marc wrote:
New perscription time. Need correction for both distance and reading.
what is the best way to combine/manage the various combinations of
clear and tinted lenses. I had variable lenses with clip-ons. but the
poloroids made reading the instruments difficult and the lenses
weren't large enough to give adequate UV protection. Suggestions?

I have progressive bifocals with an automatic tinting (photo-sun?
transitions?) Now they're the only glasses I wear. I used to keep
untinted and polaroid prescription glasses, but no more.

On Fri, 08 Sep 2006 17:57:19 -0400, Jeff wrote:
Sounds like a great idea, thanks.

Are the progressives large enough to block the scattered UV?
How fast is the transition from dark to clear?
Any problem reading a chart plotter in full sun?

I have progressive bifocals with an automatic tinting (photo-sun?
transitions?) Now they're the only glasses I wear. I used to keep
untinted and polaroid prescription glasses, but no more.

Marc wrote:
On Fri, 08 Sep 2006 17:57:19 -0400, Jeff wrote:
Sounds like a great idea, thanks.

Are the progressives large enough to block the scattered UV?
Its a normal frame, in style a few years ago. Today's are a bit
smaller, but whatever you want. I usually wear a hat, and the helm
has a hardtop, so I don't worry too much about wrap-around glasses.

How fast is the transition from dark to clear?
They go dark pretty quick. The only time I notice them is when they
take a minute or two to go light when I go inside.

Any problem reading a chart plotter in full sun?
The only thing I have a problem with is my camera.


I have progressive bifocals with an automatic tinting (photo-sun?
transitions?) Now they're the only glasses I wear. I used to keep
untinted and polaroid prescription glasses, but no more.

"Jeff" wrote in message
. ..

Its a normal frame, in style a few years ago. Today's are a bit smaller,
but whatever you want.

They are getting larger again, Jeff, if incrementally. I pray we never go
back to the Elton John look or the Harry Carey-type frames. :-(

Max

"Marc" wrote in message
...
On Fri, 08 Sep 2006 17:57:19 -0400, Jeff wrote:
Sounds like a great idea, thanks.

Are the progressives large enough to block the scattered UV?
How fast is the transition from dark to clear?
Any problem reading a chart plotter in full sun?

You may be misinterpreting the term "progressives." Progressive add lenses
(PALs) are the blended, lineless multifocal lenses that most people wear in
lieu of the more traditional flat-top bifocals or trifocals. They come in
blanks up to 80mm, which means they can generally be ground to fit almost
any frame, large or small.

Transitions are faster than they used to be, but there is still a lag time.

The problems of reading a chart plotter in full sun would depend on lots of
factors, but without polarizers in your sunglasses, and with the new
sunlight-viewable LCD screens, you should have no trouble seeing them in
direct sun.

Max