Lots of cyclists wear their everyday glasses for cycling and do just fine. But, it's unlikely those glasses were designed for sports and can handle important tasks such as eliminating ultra-violet rays and glare, not fogging up, and fully protecting the eyes from airborne debris (see video).
Also, prescription glasses can be expensive and you might lose or drop them, or fall and damage them. These are all reasons we recommend considering cycling eyewear.
Today, several manufacturers offer cycling eyewear models that accommodate prescription glasses. Usually there's an insert that holds your prescription lenses and snaps into the frames. Otherwise, the cycling eyewear is identical to and offers all the high-tech features of the same non-prescription model. So, you'll have great vision and eye protection while keeping your everyday glasses safe at home.
We can show you the different prescription-compatible eyewear we carry. You'll need to visit your eye doctor to have prescription lenses made to fit the glasses and then you're set to go.