There's at least one online optician [1] that offers prescription lenses for Snap's spectacles. I can't imagine the spectacles not being usable over normal eye

There's at least one online optician [1] that offers prescription lenses for Snap's spectacles. I can't imagine the spectacles not being usable over normal eyeglasses either, just like other off-the-shelf sunglasses or 3D glasses. [1] e.g. https://www.glassesusa.com/snap-spectacles https://www.glassesusa.com/snap-spectacles