With a 60.5 PD -- is it better to go with 60 or 61? Is the focus point closer with one?
I've used the Zenni formula for converting my normal prescription to reading glasses -- but the book seems a couple inches too close for comfort -- how can I adjust the formula for the focual point to be a couple inches further away? -- 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
