Well, I took the plunge. I bought a pair of prescription sunglasses from Zenni (blue frames with 80% grey tint):
http://www.zennioptical.com/cart/product.php?productid=705&cat=0&page=1 I just went with their standard 1.59 index lens. I figure, they are just sunglasses, so I won't be too upset if the lenses are a little on the thicker side. If I can handle the thickness of the 1.59 lenses (and happy with Zenni's service), I'll order more from them. Thanks for all your input! I really appreciate it. On May 11, 12:10 am, Chuck Knight <[email protected]> wrote: > We discussed this a long time ago...trying to figure out the right > "theoretical" sized frame for a person, based on PD. > > Premise: The eyes should be horizontally positioned in the center of the > lenses. > > My PD is 61mm (I think...don't have it in front of me). Therefore, the > bridge, plus 1/2 of the left lens, and 1/2 of the right lens should equal > 61mm. > > That means that (lens width) + (bridge) = PD should provide the theoretical > perfect size. > > Let's take a pair of Windsor frames. 40mm lens plus 25mm bridge, as > mentioned in the previous post. That would give a "perfect" dimension of > 40+25 = 65mm. My PD, is 61mm. Tiny as those lenses might be, that frame > would be too wide for me...but only by a few mm, so it'd probably work just > fine. > > See how it works? > > -- Chuck Knight > > On Sun, May 10, 2009 at 8:12 PM, Paul <[email protected]> wrote: > > > Do you need a wide lens or a wide frame? Some frames compensate for a > > smaller lens by using a wider bridge. Those old-fashioned 40mm Windsor > > (round) frames often had a 25mm bridge. --~--~---------~--~----~------------~-------~--~----~ Check us out at the oft-updated http://glassyeyes.blogspot.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 -~----------~----~----~----~------~----~------~--~---
