Just wondering everyone's thoughts. I have a pt. who is very light sensitive who thinks his KB Co. True Gray Polarized are not dark enough. I have always thought that tinting polarized lenses would create problems w/the lamination. He spends alot of time on the water so I would like to keep him in polarized instead of tinting a non-polarized darker. What are your thoughts.
Thanks...
LDO, ABOC, NCLEC
Slow down everyone your moving to fast, frames can't catch you when your moving like that!
I do not think they would be tintable. I am assuming that there is either a hard coat or a non-tintable coating on the lens.
You can tint the material, but it voids the manufacturers warranty. I'm not sure if it will go considerably darker than the true grey.
I tint them frequently. I will only tint them before edging thou, never after. Another alternative I use is to apply a black mirror and inside AR, as it darkens the lens nicely, without a real shiney look.
I've tinted the Younger Nu-Polar lenses before, even after edging.
I do think people think that they need the darkest possible because of their sensitivity, real or imagined. Polarized lenses, of course block a lot more light than a non-polar lens tinted to the same density. If you get them too dark, they won't be able to see into a shadowed area from the bright sun, to say nothing of actually going indoors.
I have had people come in and say "You can't make them dark too dark for me!"
I make those people come back at least twice to have them lightened.:bbg:
DragonlensmanWV N.A.O.L.
"There is nothing patriotic about hating your government or pretending you can hate your government but love your country."
This pt. has adiestonic pupil on the right eye only. He is also in a 7x28 so I dont think a mirror will work. I have recommended a clip-on over his existing polarized for as needed. I am thinking this will be his best option.
Thanks.
LDO, ABOC, NCLEC
Slow down everyone your moving to fast, frames can't catch you when your moving like that!
I always remind my patients that we're getting close to straight-up opaque. But, ditto on the tinting before edging. I've done it before and it turned out fine (ask the lab which lenses have tintable coatings)
However, I think the black mirror (like oakley's black iridium) is the best approach, and definately AR on the back.
Oakley's Black Iridium on Polarized is only 9% light transmission.
Are you saying it'd be too much protection for the left eye, or is there something about an adiestonic pupil that doesn't work with a mirror?Originally Posted by Eyefish
Polarized lenses are tintable, back-side ar coating is strongly recommended, however, i don't think solid mirror coating is a good idea, if patients insisted they want mirror coat, go with the flash mirror or the Zeiss Cool blue mirror.
Last edited by ken_h_lin; 08-24-2008 at 11:20 AM.
if you have a back coater and your coating solution is very tintable then you can tint polar in any material significantly darker. like way too dark. ditto on the tint before edge.
btw, where can i find out more about/get this black mirror. i haven't heard of it and my ar lab doesn't offer anything like that.
Black Mirror?????
i know, right? common people. help us out here.:p
Vas is: adiestonic? Can't find in dictionary, haven't heard before. Got some good guesses but really don't know.
Also don't know what you are trying to protect his eye from.
Chip
NACL has it- it's neat. It looks like a shiny gunmetal frame finish on a lens.
DragonlensmanWV N.A.O.L.
"There is nothing patriotic about hating your government or pretending you can hate your government but love your country."
Try the new gray Coppertone lens from vision Ease. Its darker than most. I had a patient with a similar complaint and are happy with them.
Not sure if I got the spelling correct but adiestonic pupil, always dialated. The pt. just seems to be more sensitive to bright light. I am not trying to protect his eye, just trying to give him more comfort in bright light conditions as needed. I did not like the idea of tinting his Gray C polarized darker, so I gave him a pair of neutral gray clips as needed.
Thanks for everyones help.
LDO, ABOC, NCLEC
Slow down everyone your moving to fast, frames can't catch you when your moving like that!
I've never had any problem over tinting polarized after edging. It works quite well for people who want/need something on the darker side.
Nate
My Night A/R Guy wears Dididium Lenses
As Dragon mentioned, it is a basic black looking mirror, sorta deep gunmetal.
Opticote also produces one in there "Chicago Collection"
www.opticote.com
They have neat website as well!
:cheers::cheers::cheers:
just be aware that tinting after edging increases the likelihood of a lens delaminating.
If you use a conventional laminated one, sure. Molded doesn't have quite the problem. I've not had a delam for years and years since Younger brought out NuPolar.
DragonlensmanWV N.A.O.L.
"There is nothing patriotic about hating your government or pretending you can hate your government but love your country."
hmm... haven't used nupolar in a couple of years, but i can remember some youngers delaminating with in the last year in my lab (not tinted btw).
Now that I know what you are dealing with, why not some of the opaque periphery clear center contacts. Shoot they are even fairly cheap now, come in assorted colors, etc. Can even get UV protection, etc.
Chip
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