- Myopia—commonly called nearsightedness, which makes distance vision blurry
- Presbyopia—commonly called farsightedness, which makes near vision blurry
- Astigmatism—which focuses light on more than one spot on the retina, making vision blurry
- Refractive Power – The first number in the series identifies your degree of nearsightedness or farsightedness. A plus sign (+) indicates you are farsighted, a minus sign (-) indicates you are nearsighted. This number is called your spherical correction.
- Astigmatism –The second number in your prescription identifies what degree of astigmatism you have i.e. how well or poorly your eye focuses light onto the retina. The number can be written either with a (+ sign) or a (- sign). This number is called your cylindrical correction.
- Axis – The third number indicates the direction of your astigmatism. For example, an axis of 180 degrees means the astigmatism is horizontal. If your prescription doesn’t have a second or third number, you most likely don’t have astigmatism.
- DV vs. NV – Your prescription might also contain the abbreviations DV (distance vision) or NV (near vision). DV is the portion of your prescription which corrects your ability to see things far away. 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.
If you think you’re due for a prescription update, make an appointment with your eye doctor for an eye exam.
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