Once you have a valid prescription from an eye doctor, you are free to shop at various licensed retailers:
: Many sites like LensDirect or Warby Parker allow you to upload a scan or photo of your prescription.
In the United States, you legally buy contact lenses "over the counter" without a prescription, even if they are purely for cosmetic or decorative purposes. All contact lenses are regulated as medical devices by the Food and Drug Administration (FDA) , meaning sellers are required by federal law to verify a valid prescription before completing a sale. Why a Prescription is Required where can i buy over the counter contact lenses
: Stores like Walmart Contacts can verify your prescription directly with your doctor.
: Eyes vary in curvature and diameter; a "one-size-fits-all" lens can cause scratches, ulcers, or infections. Once you have a valid prescription from an
: Most optometrists and ophthalmologists sell the lenses they prescribe. Warning Against "Illegal" Sellers
The FDA and FTC warn against buying lenses from unauthorized vendors such as: Decorative Contact Lenses for Halloween and More - FDA Why a Prescription is Required : Stores like
: Contacts are Class II or III medical devices because they sit directly on the cornea.