How to Read Your Eyeglass Prescription 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 dexter) means the right eye. Occasionally, you will s...
If you shop online, you can find a pair with prescription lenses for as low as $31. Pricing varies, depending on the frames you order, your prescription strength, the lens upgrades you want, and the type of lenses you need (such as single vision orprogressives). If you don’t need v...
“Axis” is measured in degrees and refers to where an astigmatism is found on the cornea of the eye. If you have an astigmatism, there will be numbers in both the CYL and AXIS columns of your prescription. Add “Add” refers to the magnifying power (if any) that is added to the bo...
This lens option is for people with somewhat stronger prescriptions. These lenses are one of the most thin and lightweight out there, and can handle prescriptions with SPH corrections between +/-5.00 and +/-4.00 and below, and CYL corrections of +/-3.00 and below. ...