Understanding Your Contact Lens Prescription

After the eye exam and contact lens fitting, you will receive a contact lens prescription. In the U.S., an eye care provider is required by law to provide patients with copies of their prescriptions. This allows people freedom to purchase contacts from any authorized retailer.

Is a Contact Lens Prescription Different From My Glasses Prescription?

Yes, a contact lens prescription will have different parameters and powers than a glasses prescription.

How Do I Read My Contact Lens Prescription?

Our How to Read Your Contact Lens Prescription page breaks down examples of contact prescriptions so you can learn the meaning behind every abbreviation and measurement.

Do I Need a Prescription to Wear Contacts?

Yes. Every contact lens requires a prescription from an eye doctor since they are considered medical devices and can affect eye health.

How Long is My Contact Lens Prescription Valid?

Prescriptions are typically valid for 1-2 years depending on the state. Simply search for your state’s contact lens prescription expiration to find out. If your prescription is expired, just take our Online Vision Test from home and an eye doctor will review your prescription the next day so you can reorder your contacts. However, this should not take the place of your annual eye exams.

Why Do Contact Lens Prescriptions Expire?

Contact lens prescriptions expire every 1-2 years because your vision and eye health could change. Even if you don’t notice any vision problems or eye-related symptoms, there could be slight differences that go unnoticed.

If you have any more questions or concerns, visit our Frequently Asked Questions (FAQ) page, browse our contact lens guide, or contact our customer service center for help.