Q: Are 3D glasses from the movie theatre OK to wear as sunglasses? I heard they are polarized.

A: Commonly these glasses have some UV protection, but they are not polarized the same way as polarized sunglasses, in which the lenses are oriented to reduce glare and bright reflections from horizontal surfaces like roads, ice, and water. You’ll do better to let the theatre keep their glasses and get something better suited for protection and function.