Can wearing contact lenses cause dry eye? Can wearing contact lenses prevent my astigmatism from getting worse?

What Does Sphere, Cylinder and Axis Mean? · Sphere (SPH) – The term “sphere” means that the correction for nearsightedness or farsightedness is spherical, equal ... Oct 26, 2022 ... So what do each of these contact lens prescription figures mean? · Base curve (BC) · Diameter (DIA) · Power/Sphere (PWR/SPH). Aug 18, 2023 ... What is an Eye Prescription? The Importance of Eye Prescriptions; Components of an Eye Prescription. Sphere (SPH); Cylinder (CYL); Axis. AC Lens is now part of Discount Contacts! You'll find even better prices on all major brands of contact lenses. Sign up now to Save 20% on your first order! Jan 4, 2019 ... CYL, cylinder, is measured in diopters and is used to correct one's astigmatism. It is usually written with a minus sign to correct for the more ... By the time you have finished reading this, you should have a clearer idea of just what all the numbers and values mean. ... For instance, the SPHERE (SPH) and ... The minus (-) sign indicates correction for nearsightedness (myopia); a plus (+) sign would mean farsighted correction (hyperopia). ... The degree axis of the ... » BRAND = The brand name given to the contact lens - for example "Soflens" or "Acuvue". For astigmatic patients, there is also the following parameters: » CYL ( ... When you enter your prescription during checkout, please select "Not Applicable" for all Cylinder and Axis fields, thank you. Please note you can also ... What Does Sphere, Cylinder and Axis Mean? · Sphere (SPH) – The term “sphere” means that the correction for nearsightedness or farsightedness is spherical, equal ...