Depending on the strength of your prescription and the lens size/type, 2-3mm in pd usually makes little difference. If you have a mild correction (under -5.00), then +/- 2 mm will not be very noticeable. I've gotten my PD taken about ten times in the past 15 years, their measurements rarely are the same but never are they more than 2.5mm different. I've noticed that when taking my PD myself of helping others measure it, your eye tends to slightly look toward the center, perhaps reducing your PD by a few mm - I suspect that might have happened to you. The Pupil Distance Meter measurement, if taken correctly, is considered the most accurate method we have - I would use 66.
If you're ordering a bunch of glasses, I would go to your local eye doctor and ask them for a new PD measurement just to be sure. J. Evan On Jun 19, 11:17 am, steven c <[email protected]> wrote: > OK, my manually-measured PD seems to have been 62: my current glasses > seem to be made to that size, and the eye doctor on my recent checkup > told me that's what he found (though whether on my face, while > calibrating the eye-checking thing, or from my current lenses I'm now > not sure). But at the local glasses place they used an electronic > gadget that measured my PD as 66 or 67. I was going to order a bunch > of new pairs but am thoroughly confused. Anyone have experience with > these PD-measurement machines? --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
