eyeglass lens thickness dilemma?!

Best Answer - Chosen by Voters

You're positive you prescription only had a slight change? Maybe somebody messed up and used the regular plastic lenses when they were supposed to use the high index ones, stuff like that happens occasionally. Just go back to the place where you got them (take your old glasses too) and see if they can figure out what happened.

Of course, they will say the mess is someone else's fault, claiming something like "I distinctly remember the customer requesting glasses that were as thick & nerdy-looking as possible"!

This question(?) should be directed to the optometrist that prescribed the glasses. However, that aside, the glasses must be ground to provide the correction that you need for better vision. In order to do this there must be one or more curves ground into the glass. The power of the lens dictates the shape and depth of the curves. Obviously, there must be sufficient glass present or the lens cannot be made. The real question is "do the glasses work well for you"? If they are better than you had before then everything is probably right.

In any event, give your eye doctor a call and ask him. He is the real authority.

Lifes experiences

You should try to determine the index of refraction each of the lenses has. This number determines how thick your lenses will be in the end. If you're myopic the lenses will always be thicker on the rim, which means that the size of the frame plays a role as well.

If the index of refraction and the frame size is the same in both glasses you have been duped by the second optometrist and should object and try to get new lenses or (part of) you money back.

http://www.refractivesource.com/patients/alternatives/glasses/lenses-material.htm

There may be a reason for it, or there may not be....the only ones who can know are the people who made them , and can actually see them and know your prescription.

All you can do is go back to them and ask them why they are so thick compared to the old ones.

It's quite possible someone goofed....

EDIT *****

If the eye Dr. can't tell you why , he is obviously incompetent, or hiding something. A simple center thickness measurement with a caliper will tell the story. They should be no more than 1.2mm thick at center. If they are more than that , they weren't ground correctly , or they aren't hi-index that you paid for.

Optician

What is your Rx? Anything above a 4.00 probably needs high index lenses. I suppose it's too late for the lenses that you already have, but if you want to replace them with thinner high index lenses, I think you can do so for about $30 quickly and cheaply at www.replacementlensexpress.com. I dunno if they are still having that same price cause it was a sale, but it's probably worth e-mailing them and asking.

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This isn't a question. What are you asking?