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An Eyeglass Prescription Is Not A Contact Lens Prescription. Eyeglass and contact lens prescriptions aren't the same. An eyeglass prescription is for the purchase of eyeglasses only. It does not contain certain information that is crucial to a contact lens prescription and that can be obtained only during a contact lens consultation and fitting.


When you look at your prescription for eyeglasses, you will see numbers listed under the headings of OS and OD. They are Latin abbreviations: OS (oculus sinister) means the left eye and OD (oculus ...


YOUR EYEGLASS PRESCRIPTION DECODED. Your eyeglass prescription is typically written in a grid like the one below, using a combination of terms, abbreviations, and numbers. Usually you’ll see these abbreviations along the left side: O.D. stands for oculus dexter, meaning right eye. O.S. stands for oculus sinister, meaning left eye.


Understanding Your Glasses Prescription: What the Numbers Mean What is that Prescription Code? When you leave your eye doctor's office and look at your prescription, it may seem like an unintelligible series of numbers and abbreviations. That code lets your eyeglass manufacturer know not only if you're nearsighted or farsighted, but also if you ...


Similar to medical prescriptions, eyeglass prescriptions are written on paper pads or included in a patient's electronic health record, and contain a number of different abbreviations and terms: DV is an abbreviation for distance vision. This specifies the part of the prescription designed primarily to improve far vision.


The next number in the sample eyeglass prescription is -0.50. This number represents the "cylinder" part of the prescription. Another word for cylinder is astigmatism and represents the difference in curvature and power between two points on the eye, separated by 90 degrees. The next number is x 180, read as "axis 180."


This prescription shows that the patient has 2.75 diopters of myopia with 1.25 diopters of astigmatism at an angle of 15 degrees in the right eye, and the left eye is plano with 0.75 diopters of astigmatism at an angle of 85 degrees.


NV means your prescription is for reading only. You may be surprised to learn that your left and right eyes can have different prescriptions, but this isn’t uncommon. If your eyes are different, your VSP network doctor can provide a different prescription for each eye to meet your specific needs.


Now that you know what these terms mean, you know how to read a glasses prescription — that’s the most important part of learning how to buy prescription glasses online. By learning these terms, you can also more easily discuss your prescription with your eye care professional. Now start your journey


How to Read My Prescription. How do I read my prescription ... There are two different ways to write numbers on prescription, but they have the same meaning. If you have +200 on the prescription, just enter +2.00 in the prescription form. ... I have BALANCE/BAL on my prescription. Balance indicates that the eye for which the designation is made ...