Can my optometrist or ophthalmologist explain my "cyl" value to me? Are there any online resources where I can learn more about astigmatism and contact lenses?

Mar 9, 2013 ... The answer, and you probably already thought of it, is the use of a gas perm contact lens. It will flatten or mask the minimal toric status of your corneas. In theory, a lensometry technique can also be used for cross-cylinder calculations. To do this, place the sphere, cylinder, and axis powers of the diagnostic ... » BRAND = The brand name given to the contact lens - for example "Soflens" or "Acuvue". For astigmatic patients, there is also the following parameters: » CYL ( ... Colored Contacts & Circle lenses · Toric Colored Contacts & Circle lens ... What Do The Words Sphere, Cylinder and Axis Mean? Not all eyeglass ... Sep 13, 2021 ... Axis is the direction of astigmatism in degrees. Yes, this would be considered a high prescription. ... So I tried out contacts a few months ago ... 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 ... Nov 20, 2024 ... The final column in a standard vision prescription is the axis, which includes a number between 0 and 180 degrees. ... axis values indicate light ... Apr 18, 2023 ... What does “sphere (SPH)” mean on my prescription? The sphere column ... A contact lens prescription includes measurements specific to the size and ... 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 ... Do I need an eye test? Eye conditions · Your prescription explained. Help. Peripheral distortion · Contact lenses storage · Anti-glare glasses · Experiencing ...