What does "base curve" (BC) mean on a contact lens prescription? What does "diameter" (DIA) mean on a contact lens prescription?

... do not completely cover the eye and surrounding area. The effectiveness ... in Axis 10° to 180° -2.25D Cyl. in Axis 10°, 20°, 70° to 110°, and 160° to ... Mar 25, 2025 ... What Does Power Mean for Contacts? ... PWR means refractive power, but sometimes it can be abbreviated as SPH (sphere). This is the amount of ... May 26, 2024 ... What does the Axis in Contact Lenses Mean? Now to the big question – what does an axis mean in a contact lens prescription? The axis is ... Apr 5, 2022 ... Codes like “D, CYL, and AXIS” are all over your prescription, but what do they mean? Many people need different levels of vision correction ... Jul 16, 2020 ... If you wear contact lenses, you will need a prescription that is completely separate from your eyeglass prescription. Contact lens prescriptions ... What Does Sphere, Cylinder and Axis Mean? · Sphere (SPH) – The term “sphere” means that the correction for nearsightedness or farsightedness is spherical, equal ... Jun 7, 2024 ... “Plano” is a term used in eye prescriptions to indicate that there is no refractive error in the spherical component of the lens prescription. Save big on glasses & contacts. Maximize your vision benefits now. Contact lenses. First Name. Last Name. Date of Birth (MM-DD-YYYY). Zip Code. Access Benefits PWR (Power)/SPH (Sphere): On a contact lens prescription, you may see the SPH ... What do the numbers on my eye prescription mean? Numbers on an eye ... ... contact lenses (always a minus [–] on contact lenses). EAxis: contact lens axis is a number between 0 – 180 degrees which shows the angle of correction ...