We had a few discussions relating to extremely high prescriptions, just a few weeks ago. If you look in the archives, they're pretty easy to find.
In them is a link to an online thickness calculator -- you enter in your prescription, the index of the material, and your lens dimensions...it calculates how thick your edges will be. Kinda' cool, really, because it lets you predict just how thin/thick the resulting glasses will really be. Calculate it for the various index values you find, and see if the difference in cost is worth it. Might be a difference of no more than 1/2mm, between some of them. Let me see if I can find the direct link for you... http://opticampus.com/tools/*thickness*.php<http://opticampus.com/tools/thickness.php> Ultimately it's going to be up to him to decide how thick is too thick. But, be aware that a plastic frame is a good way to camouflage thickness. Wire rimmed frames can make even a thin lens look thick...conversely, a dramatic plastic frame can easily hide a variety of sins. A wide temple arm is another good way, since it physically obscures the view of the side of the lens. Alternately he could embrace the thickness, and go for something rimless. A small lens, with absolutely no edge to define it visually, might be less noticeable than a big lens with a thick plastic frame. -- Chuck Knight On Tue, Sep 30, 2008 at 1:19 PM, lanalana <[EMAIL PROTECTED]> wrote: > > I'm trying to help my boyfriend find glasses-- he has a very high > prescription, in the range of -11 and -12. His head seems to be on the > large side and his eyes are certainly very large. His current glasses, > which are wire frame and have nosepads, are 50-19-142. I'm not totally > sure if the 142 refers to the arm length or the temple-to-temple > width. > > He wants to go for something that's plastic and horn-rimmed and kinda > geek-chic, but not ACTUALLY supergeeky with coke bottle glassy > > He wants high index lenses and is concerned that anything less than > 1.74 will be too thick. I know zenni has a wide selection of frames > and goes up to his prescription, but I they highest index they have is > 1.67, which he thinks will be WAY too thick. > > I know that he can get higher index from globaleyeglasses, but it > seems like at that point, he's spending close to $400 anyway, which is > what he can get glasses for with his insurance from a brick and mortar > shop. And I think even then it's 1.71, not 1.74 from global. > > Anyway tips for helping him get a great frame with the right lenses? > > > > --~--~---------~--~----~------------~-------~--~----~ Check us out at the oft-updated http://www.glassyeyes.com! You received this message because you are subscribed to the Google Groups "GlassyEyes" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/glassyeyes?hl=en -~----------~----~----~----~------~----~------~--~---
