Yes, sign me up to receive special email How to Read Your Eyeglass Prescription. OD vs. OS: How to Read Your Eyeglass Prescription. This prescription can appear confusing until you know the meaning of abbreviations such as OS, OD, and CYL. These codes are much simpler than you might realize. Typically, the higher the number, the stronger the prescription. You may just see RE for right eye and LE for left eye, as some doctors have moved away from the traditional Latin prescription terms. A zero (0) would be no correction. Verywell Health. Please check your input and try again. Anatomy of the Human Eye – Parts of the Eye Explained. Healthline explains that when you get your prescription, you will see the terms OD and OS. This number will almost always be the same in both eyes and range somewhere between 0.75 and 3.00. In addition to the terms listed above, sometimes there are unique terms on the eyeglass prescription. American Academy of Ophthalmology. Nearsightedness, or myopia, is when someone is unable to see things clearly unless they are relatively close to their eyes. Additional information provided on a contact lens prescription includes: The base curve value of a contact lens typically ranges from 8.0 to 10.0. But it can be mind-boggling to comprehend the details of your eyeglass prescription and how it affects the way your eyeglasses are designed to help you achieve the desired 20/20 vision. Typical SPH numbers range between 0.00 and +/- 20.00. Treating Astigmatism: How Low Can You Go? How to Read and Eyeglass Prescription. (May 2016). OU stands for oculus uterque, which means both eyes. Additionally, the strength of a prescription for glasses is usually modified when determining the best power for contact lenses. It’s considered a mild amount of nearsightedness. Government Warns Eye Doctors: Provide Prescriptions After Eye Exams or Else. It is essential for creating effective and comfortable glasses. This strength is measured in diopters (D), calibrated to adjust for nearsightedness or farsightedness. (April 2016). Prism is listed in either metric units or fractions, indicating the prismatic power required. Fortunately, the abbreviations have been standardized around the world, so you can take your eyeglass prescription to get a replacement set of glasses even when traveling or living abroad. (Learn More), The numbers on your eyeglass or contact lens prescription provide important information about your eye conditions. Glasses Prescription vs. Some people’s astigmatism is bad enough that it needs lens adjustments to fix it. An eyeglass prescription cannot be used to buy contact lenses. WebMD. Instead, it means that the correction for either nearsightedness or farsightedness is spherical, which means it is equal in all the meridians of the eye. To mark the required cylinder power, a doctor will follow the format of sphere power in an eyeglass prescription. This is because eyeglass lenses are worn about 12 millimeters from the surface of the eye, while contact lenses rest directly on the eye’s cornea. Offer is not valid for Contoura or SMILE procedures. We provide safe, effective, and affordable LASIK & PRK. It is important to note that prescriptions for eyeglasses and prescriptions for contact lenses are not one and the same. It is possible to use a different brand of contact lens in each eye based on the unique needs of each eye. If the SPH value is 0.00, or noted by Plano, Pl, or an infinity sign, you do not have a vision distance problem. Now you should be able to make sense of your eye prescription. At 40, many early warning signs of disease and eye problems start to appear. Unique features can be added to eyeglasses, helping to improve your overall comfort and results while wearing the glasses. Prescription Glasses and Contact Lenses. PD: This stands for pupillary distance, which represents the measurement of the distance (in millimeters) between the center of each pupil. To determine the best treatment for you, please complete our simple form to schedule a consultation exam.

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