On Jun 13, 11:53 am, Sasha <[email protected]> wrote: > Re. PD: I learned this week that PD is often given as a fraction, such > as 58/61. > The second, higher number is the one to use for progressives, the > lower for reading glasses. > Or so I'm told. > > Anyone know otherwise?
Almost got it. The number is not a fraction, it's actually two numbers. Only progressives have 2 PD numbers. The higher number is for distance vision, the lower number is for reading. -- 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
