Lorena, your optometrist is pulling your leg ! Your prescription is relatively light, even with the "lowest index"(thickess) 1.5 lens there would not be a significant difference. Polycarbonate lens have the worst optical properties of all lens materials and are usually in the 1.57 to 1.59 mid to high index lens category, but they do offer the advantage of being impact resistant if you use your glasses for sports.
The standard CR39 mid index 1.56 lens is more than enough for your prescription, going to a higher index lens is waste of money for such a low power prescription and you would not notice barely any significant thickness difference between mid to high index lens. On Oct 22, 7:16 am, Lorena <[email protected]> wrote: > Hi, > > I recently went to the optometrist for my annual exam and got my > prescription. When I went to pick out glasses though my jaw hit the > floor when i saw the prices. So I decided I was going to buy online. > > I have a relatively stronger prescription need in my left eye as > compared to my right and my local optician said I would need to > purchase polycarbonate lenses to avoid extremely thick lenses and so > that the lenses would be made as close in width to each other as > possible. > > Is this true? > > Also considering my prescription: my right eye is -.50/-.50/012 and my > left eye is -1.25/ > -1.0/172, would there be a substantial thickness difference if i went > with the regular plastic lenses as opposed to the polycarbonate or > even a high index glass lens. > > Thanks in Advance. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
