: Most optometrists and ophthalmologists sell the lenses they prescribe. Warning Against "Illegal" Sellers

Once you have a valid prescription from an eye doctor, you are free to shop at various licensed retailers:

: Stores like Walmart Contacts can verify your prescription directly with your doctor.

: A professional fitting ensures the lens allows enough oxygen to reach the eye. Where You Can Buy Lenses (With a Prescription)

: Many sites like LensDirect or Warby Parker allow you to upload a scan or photo of your prescription.

The FDA and FTC warn against buying lenses from unauthorized vendors such as: Decorative Contact Lenses for Halloween and More - FDA