![]() This is the curve of the inside of your contact lens. A contact prescription will also include the following additional information: That’s because glasses are positioned about 12 millimeters (mm) from your eyes, whereas contact lenses go directly on the surface of your eyes.īoth prescriptions will contain corrections for nearsightedness, farsightedness, and, if needed, astigmatism. A higher number means that you have a more severe astigmatism.Īre glasses prescriptions the same as contact lens prescriptions?Ī prescription for glasses is not the same as a prescription for contact lenses. Similarly to the SPH, there will also be a number with a plus sign (for farsightedness) or a minus sign (for nearsightedness) that follows CYL. A higher number, regardless of whether there is a plus or minus sign, means you’ll need a stronger prescription. A plus (+) sign or no sign means you’re farsighted. If the number has a minus (-) sign next to it, it means you’re nearsighted. This number is used to identify how strong your lenses need to be to correct your vision. is a spherical correction (SPH), measured in diopters. ADD: additional power measurement for bifocal and multifocal lensesįor each eye, the first number you’ll see after O.D., O.S., or O.U.NV: near vision, or the part of your prescription to help you see things close-up.DV: distance vision, or the part of your prescription to help you see things far away.AXIS: direction of an astigmatism correction.CYL: cylindrical correction, which is used to identify an astigmatism.The prescription will include several numbers and abbreviations. ![]() After an eye exam, your optometrist or ophthalmologist may write you a prescription for eyeglasses or contact lenses. ![]()
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