They probably put the optical centers in the wrong place, installed the lens wrong in an oval or circular frame, or screwed up the astigmatism or progressive correction.
It is possible to install your own lenses, even in plastic frames, though most people don't want the hassle of this kind of do-it- yourself. With metal frames, you need jewelers screwdrivers. Half decent jeweler sets don't cost too much.With plastic frames, I found that holding them under the hot water tap will expand the frame enough to allow you to pop out the lens. Then install the new lens while the water is running over the frame. You should be able to replace the lens with a reasonably moderate amount of force. (I think they use hot beads or sand in the optical lab.) Most frames are asymmetrical enough to make the lens alignment obvious. With circular and oval frames, there's more than one angle the lens can have and fit into the frame, but usually only one correct angle. -- 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
