[mrob]

This is competing with contact lenses, not glasses. All types of eyeglasses cause image distortion. The higher the correction, and the greater the distance from the lens to the eye, the worse it looks. Correcting the eye directly, with contact lenses/drugs/surgery, gives you less distortion.

[caymanjim]

The article is specifically about reading glasses. Contact lenses have nothing to do with it, unless you think people are popping contact lenses in to read and taking them out after.