You asked: Do I need a separate prescription for glasses and contacts?

Can I get contacts with a glasses prescription?

Can I use my glasses prescription for contacts? Unfortunately not. Your eyeglass prescription only has the power part of the contact lens prescription. In addition to the power the proper base curve (BC) and diameter (DIA) are needed to order contact lenses.

Why is my contact and glasses prescription different?

However, contacts and glasses prescriptions are actually slightly different because of their distance from your eyes. Eyeglass lenses are placed approximately 12 millimeters away from your eyes, while contact lenses sit directly on your corneas.

Are glasses prescriptions stronger than contacts?

Since eyeglasses are usually about 12 millimeters from the eye, the prescriptive power of a contact lens — which is positioned directly on the tear film of the eye — will be slightly less nearsighted. This becomes significantly different with prescriptions of 4D or greater.

How can I get contacts with an expired prescription?

Can I buy contacts with an expired prescription? You will need a current, valid prescription before you order more contacts. Fortunately, if your eyes and contacts feel fine you can now renew your contact lens prescription online using 1-800 Contacts Online Prescriptions.

Can you get a contact prescription online?

Nearly 114 million adults, including 65% of eyeglass wearers and 82% of contact lens users, got an eye exam in 2015, according to the Vision Council, an industry group. … Opternative promises the prescriptions within 24 hours and says they can be used to buy eyeglasses or contacts anywhere, online or in stores.

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What happens if you wear contacts with the wrong prescription?

One of the most common effects of wearing the wrong contact lens prescription is blurry vision. Since contacts are meant to improve vision, the wrong prescription will typically cause impairment in a person’s vision, says the U.S. Food and Drug Administration.

What happens if contacts are too strong?

It doesn’t happen often, but if an error was made in your contact lens prescription and you are wearing lenses that are too strong, too weak or otherwise incorrect, this could cause eye strain and headaches. If this is the cause, replacing the lenses with contacts of the correct power should eliminate your headaches.