"Marc" wrote in message
...
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.

The best alternative is whatever works well for you. There are lots of
options, but none work perfectly with everyone. Some prefer
Transitions--photochromic resin lenses- which change color when exposed to
certain parts of the UV band, but they are relatively ineffective when
driving as not much UV makes it through glass auto windshields/windows.
Others prefer the newer magnetic clip-ons. I like separate sun and
colorless lenses, each in their own frame. There are other options.

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?

Polarized lenses can be a problem when viewing instruments with plastic
lenses. Plastic, depending upon the stress patterns, can appear dark or
opaque when viewed with polarizers. For that reason, I don't care much for
them. I have several pairs of polarized sunglasses, but prefer my
non-polarized types.

As for size, it's really not that big a deal. The small amount of UV that
enters your eye obliquely at or near sea level is insignificant, unless you
are at high altitude on snow. Then you need leather side shields to stop
the oblique rays.

Max