How can I ensure that I am providing accurate prescription information when ordering contact lenses online? What are the privacy and security considerations when purchasing contact lenses online?

If you need glasses, the optometrist will write you a prescription. Here is a simple guide to what it means: Sph (sphere) represents how long or short-sighted ... Cylinder (CYL): This number is all about correcting that ... What is the difference between a glasses prescription and a contact lens prescription? ... 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 ... Eye care professionals use standard terminology, abbreviations and measurements for every prescription. Learn what each of these data points mean and you can be ... "CYL" is short for "cylindrical power," which determines how strong a cylindrical lens must be to correct your astigmatism. Additionally, the term "Axis ... Mar 20, 2024 ... Eyesight measuring zero diopters doesn't require any help from glasses or contacts. The farther the diopter is from zero — whether it's positive ... When you enter your prescription during checkout, please select "Not Applicable" for all Cylinder and Axis fields, thank you. Please note you can also ... CYL - Cylinder (usually a number between -0.5 to -2.25). AX - Axis ... A contact lens prescription is not the same as an eyeglass prescription. In ... We'll break down the prescriptions for different types of contact lenses, what they mean for your eyes, and how to understand your vision correction needs. Do I need an eye test? Eye conditions · Your prescription explained. Help. Peripheral distortion · Contact lenses storage · Anti-glare glasses · Experiencing ...