Do You Need A Prescription To Buy Contacts -

Eyes vary in shape. An eye doctor must measure the base curve and diameter to ensure the lens doesn't scratch the cornea or cut off oxygen.

You can often find better prices, but you must provide your doctor’s info so the site can verify the script. do you need a prescription to buy contacts

Under federal law—specifically the —contact lenses are classified as medical devices. This applies even if you are buying "cosmetic" or "color" lenses that don't correct your vision. Why a Prescription is Required Eyes vary in shape

Usually valid for one to two years (varies by state). Buying Online vs. In-Office Buying Online vs

Not every eye reacts well to every lens material (hydrogel vs. silicone hydrogel).

The strength needed to correct your vision. Base Curve (BC): The back curvature of the lens. Diameter (DIA): The width of the lens.