Even though they are "retail" stores, they are legally required to verify a valid, current prescription from an optometrist before selling to you. 2. Online Direct-to-Consumer Sites
In the United States, the phrase "buying contact lenses over the counter" (OTC) is actually a bit of a misnomer. Because the FDA classifies all contact lenses—even decorative or non-prescription ones—as medical devices, you cannot legally grab them off a pharmacy shelf like you would aspirin.
If you want the convenience of buying from your couch, online giants like offer the closest experience to an "OTC" transaction.