Free Lense Limitations

We at the PrimaryGlasses.com think of you first. And so we are committed to giving you free plastic prescription lenses. Since giving away good lenses for free requires asterisks and disclaimers, here is ours: our free plastic lenses are the CR-39 plastic lenses made out of an optical plastic polymer known for its light weight (less than half of what glass lenses weigh). We are able to make these to such high quality and in such a large volume that we can give them away to our customers free of charge.

Let’s just be clear about the Rx limitations of our free lenses. There are only two:

Sphere: + to -6
Cylinder: + to -2

This covers most of the prescriptions we normally see at PrimaryGlasses.com. Enjoy your free lenses!