3 ms·

Yeah, in the US, customers need permission from an optometrist. Edit: When buying for nearsightedness.

• hollerith 3y ago
  Some eyeglasses do not require permission (prescription) in the US, including bifocal and progressive lenses.
  • ClarityJones 3y ago
    I know that's true for reading glasses, but is that also the case for distance?
    • hollerith 3y ago
      I don't know: I've never needed a lens that "un-magnifies".