If you’re thinking about switching from glasses to contact lenses, you're not alone. Contacts are a convenient and discreet option for vision correction that many people prefer. But before you jump into wearing them, it’s important to understand the process of getting your first pair—including whether you need a prescription and where to buy them.
Do Contact Lenses Require a Prescription?
Yes, contact lenses do require a prescription, even if you already wear glasses. Many people assume that their contact lens prescription and glasses prescription are the same, but that's not necessarily true. Contact lenses sit directly on the eye and require specific measurements that glasses don’t. A contact lens prescription includes details like:
- Lens brand and material
- Base curve (to match the shape of your cornea)
- Diameter
- Power for each eye
These factors ensure the lenses fit properly, provide clear vision, and minimize discomfort or eye health risks. An improper fit can lead to dry eyes, irritation, or even infections, which is why your eye care provider must evaluate and approve your contact lens wear.
Can You Buy Contacts Over the Counter? 
No—you cannot legally buy contact lenses over the counter in the U.S. The FDA classifies contact lenses as medical devices, and selling them without a prescription is both illegal and unsafe. Even colored or cosmetic lenses that don’t correct vision require a valid prescription to ensure they fit correctly and are safe for your eyes.
If you find a website or store offering contact lenses without requiring a prescription, it's best to avoid it. Using unregulated lenses could lead to serious complications like eye infections or corneal damage.
Always buy your contact lenses after obtaining a proper prescription through reputable providers, such as through our experienced and professional Wagner EyeCare Associates eye care team.
How to Get Your First Pair of Contacts
Here’s a step-by-step guide to help you get started:
Schedule a Comprehensive Eye Exam – Your eye doctor will check your vision and overall eye health to determine if contacts are right for you.
Have a Contact Lens Fitting – This includes measuring your eyes and discussing your lifestyle to choose the best lens type (daily, monthly, toric, etc.).
Trial Lenses and Training – You’ll receive trial lenses to test comfort and fit, along with instructions on how to insert, remove, and care for them.
Order Your Contacts – Once your prescription is finalized, you can order from your eye doctor or a licensed online retailer.
Getting contact lenses is a safe and straightforward process when done correctly. Always start with a professional exam, and never skip the prescription—it’s there to protect your eyes and help you see your best.