Reply #6: For non-contacts (glasses) you'll need your interpupitary distance. THIS IS GREAT FOR KIDS.

[FormerDittoHead]

I don't want to bury this last bit but these services are GREAT if you have kids. The "insurance" you'd buy at Pearl costs more than a new pair of glasses at one of these online places! It takes the sting out of hearing your kid lost / broke their glasses.

As for the interpupitary distance, your optometrist uses that ruler that goes on your nose, but I read of some people using a ruler (with mm) to measure. If you still have the order receipt for an old pair of glasses it should be on it.

Once you're an adult, however, your interpupitary distance doesn't change, so once you know it, you're set for life.

I've bought two pair from Canada's http://www.eyebuydirect.com . My one pair cost $42 with UV, scratch and glare free coatings (these often go for $50 EACH). That included a pair of coordinated clip-on sunglasses, carrying case and shipping.

BTW: these glasses are BETTER than my $250 pair which always popped screws and lenses popped out all the time.

My other pair I bought from http://www.eyebuydirect.com were prescription readers. At $17, however, having lost them, I will simply order another pair. Try doing THAT elsewhere!