I'm going to get some new prescription sunglasses and would like to
get polarized lenses for fishing. Does anyone have any wisdom to lay
on me re lens color, etc. ? Thanks.

I'm doing this investigation myself. Here's my initial thinking:

I like glasses that I can use all the way up to dusk - because I often
fish well into dark, and am rarely bothered by even noonday sun, with
even the lightest sunglasses. What that usually means is I try to use
an AMBER colored lens, which I find to be the best for light
transmission at low levels. (With COPPER being second choice, and
brown and grey being not as good).

I don't know if there are varying levels of light transmission between
brands, aside from the color question. I assume there must be.

With all this in mind, I'm thinking about getting photosensitive
lenses: lenses which change density according to the amount of light.
But, I'm concerned that the "lowest level" setting of these might still
be too much filtering for me. Anyone have any knowledge about that?
(Or, any actual knowledge, other than my guesses here?)

Tim

PS - And, just as a PSA warning: not two weeks ago I was casting a big
sal****er fly, in the high wind conditions that an Eastern trout
fisherman like myself rarely experiences... I raised my glasses to my
forehead, 'cause it was getting dark... and on the next cast hit myself
just 1/4 inch from my eye with, I think, the front of the fly. It left
a nice little cut on my temple, and - pretty scary - a blind spot in my
vision for about three days, where I guess the shock of the blow had
traumatized the optic nerves on the inside of my eye socket. A quarter
inch to the right, and I'd have lost the eye for sure. It's all healed
up now, but you can see why I want glasses that I can wear until the
last possible moment. (Not to mention casting lessons, and maybe a few
more servings of common sense.)