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The number in this column may be preceded with a minus sign or a plus sign (for farsighted astigmatism).Īxis: This is the lens meridian with no cylinder power, meant to fix astigmatism, represented by a number between 1 and 180. If the number under this heading features a minus sign (–), this means you’re nearsighted if it has a plus sign (+), this means you’re farsighted.Ĭylinder ( CYL): The amount of lens power for astigmatism. Sphere ( SPH): The amount of lens power, measured in diopters (D), which corrects nearsightedness or farsightedness. Your eyeglass prescription will also contain others terms and abbreviations such as: This is because eye doctors see your right eye on their left (first) and your left eye on their right (second). On your eyeglasses prescription, the information for your right eye (OD) comes before the information for your left eye (OS). Nowadays, you will just see the abbreviations RE (right eye) and LE (left eye) rather than the more confusing OD and OS. They abbreviate the words oculus dexter and oculus sinister: Latin words for “right eye” and “left eye.” You may also see a column labeled “OU,” and this abbreviates the Latin term oculus uterque. The first part of getting what your eyeglass prescription means is determining what “OD” and OS” mean.
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We’re here to educate you on how to interpret your eyeglass or contact lens prescription. In fact, you may even know which power is for which eye, but you still don’t know why. That way you can ask your doctor appropriate questions and discuss options during your visit.When you look at your eyeglass or contact prescription, you will see a bunch of numbers and letters listed but you may not really know what they mean. If you’ve never worn contact lenses and are thinking about doing so, it’s a good idea to learn about all the different types before your eye doctor appointment. Of course, you need to keep in mind an online vision test does not replace a comprehensive in-person eye exam. LensDirect also offers a cool new perk - an online vision test you can take from the comfort of your home! Our doctors will review the results and issue a valid contact lens prescription. You can also email your prescription, fax it to us, or simply provide the name and phone number of your eye doctor and we’ll contact them to fill your prescription. For the fastest service, we recommend uploading your prescription online. Order Contacts Online Without Prescription !Īlthough you need a prescription to legally buy contact lenses, LensDirect makes it easy for you to order. For example, if a consumer orders contacts online, the seller needs to verify the accuracy of the prescription before filling it. Properly verify the order by contacting the prescribing doctor.Only provide contact lenses in accordance with a valid prescription directly presented to them or verified by the contact lens prescriber.Correct any inaccuracy in the prescription being verified by the seller and inform the seller if it’s expired or otherwise invalid.Ĭontact lens sellers need to follow these rules:.Provide or verify the contact lens prescription to any person acting on behalf of the patient, such as contact lens sellers.Provide patients with their prescription at the end of the contact lens fitting - even if they don’t ask for it.Eye care professionals need to abide by the following guidelines: These guidelines spell out and enforce provisions of the 2003 Fairness to Contact Lens Consumers Act. Federal Trade Commission issued guidelines known as the Contact Lens Rule. Wearing decorative or vision-correcting contacts without a prescription can damage your site and even cause blindness. That means you need a valid prescription from a licensed eye care practitioner to buy them. Whether decorative or vision-correcting, contacts are classified as medical devices by the U.S. Well, guess what? Brick and mortar and online stores that sell these wild and colorful contacts without a prescription are breaking the law. You may have spotted them at your neighborhood convenience store or beauty salon.
You know those crazy zany contacts that are all the rage around Halloween? These nonprescription contacts come in in a wide variety of colors and intriguing effects including cats, vampires, witches, zombies, and spider webs, to name just a few.
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