Bi-Focal Safety Glasses

I don't know about the "wive's tale" thing about what I posted up.

Most lenses on prescriptions may be close, but there's usually a slightly variation per lens as both eyes may see differently. Unless you know, as in you've undergone and eye exam. OTC lenses are cut the same, without the variation.

Too many people just buy the OTC's because they think they need glasses, when they don't know that each eye may be different.

In the long run, you may be able to have good vision from one eye, but the strain put on the other isn't good. And since we're binocular vision species, with the glasses sitting that close to the eye, it may be hard to tell.

Many people may suffer headaches because of it and not even make the connection.