White Lens Edges & Tints On Polycarbonate Lenses...

[RE]

On some eyeglass photos I notice you see a whitish edge the same
thickness as the lens when the glasses are seen from a 3/4 angle.
Would adding an anti reflective coating get rid of that effect? Would
you also need that coating to avoid the lighter edge on a sunglass, or
would the 80% tint hide that? Would any tint like a 10% also hide it a
bit?

Also, 39dollarglasses says that their darkest tint on polycarbonate
comes out less because of the material. Would that also hold true for
the Zenni lenses that if you choose 80% it will be less tint than
that? They recommend the 80% for sunglasses, but is it a true 80% or
lighter? Thanks!

[IMQ]

I am not sure I understand what you describe. However, I would like to
comment on ARC.

The main job of an Anti-Reflective Coating (ARC) is to reduce the
external and internal reflections often seen in the high index lenses.
It may reduce or eliminate what you describe if is some kind of
reflection.

I read in some forums that poly is difficult to tint lens material, so
it won't get very dark like CR-39.

I had 2 pairs of sunglasses from Zenni: one with 80% (the max) grey
and one with %80 amber.

The grey one looks dark like a regular sunglasses but the amber one is
not as dark as the grey one. When I wear the grey one outdoor, the
brightness on a sunny day is reduced to a much more comfortable level
while the amber one does not produce the same effect.

[RE]

Thanks! I guess maybe what they say about pictures is right. Here's a
photo of a pair that illustrates what I mean. Would the anti
reflective coating get rid of these white edges that you see on the
glasses?

http://flickr.com/photos/skueppers/1346077373/in/pool-glassyeyes

[IMQ]

No, it will not.

I have exactly the same model of glasses in black with ARC that I
ordered from Zenni as a pair of computer glasses. If you look at the
lenses at some angles, like you said, you will see the whitish edges.

[RE]

It's on many glasses also. I don't like the look though. I'm trying to
find out if an anti reflective lens would eliminate it. If not, is
there any way to? Thanks!

[RE]

Sorry, just reread your post and realized that ARC was what I was
asking about. Hadn't realized you had answered my question. If the ARC
won't eliminate it then, is there ANY way to or to minimize that look?

On Jul 15, 5:06 pm, IMQ <gte...@gmail.com> wrote:

[IMQ]

I don't think there is any do-it-yourself kind of way to get rid of
that.

Since this is a plastic full frame, the edges are not polished like
the lenses in a rimless frame. Maybe having the edges polished might
help eliminate the problem, but I am only guessing.

[Paul]

I have a full-rim pair of glasses with polished edges, and it does
make the thickness less conspicuous.

[RE]

The glasses I've posted a link to was made by Zenni and they do have
polished edges. I was just wondering if there was a treatment an
optician could apply to minimize that white edge effect. Any opticians
here that would know? Thanks!

[Paul]

Now that I saw the picture, I realize that you aren't talking about
how it looks from the side. I don't like the "white effect" either
when it shows up on some glasses I have.

I thought of coloring the protruding edge the same color as the frame,
but it's not something I've tried. The effect is probably worse with
unpolished edges. When anti-reflective coating is applied to glasses,
it probably isn't applied to the edges. I think it could make a
difference if applied to a polished edge, but does any optical place
do that?

Rimless glasses don't seem to have this problem. Smaller lenses would
be thinner, and less likely to have this problem, too.