How often should I re-evaluate my vision correction needs and contact lens options with my eye doctor?

"CYL" is short for "cylindrical power," which determines how strong a cylindrical lens must be to correct your astigmatism. Additionally, the term "Axis ... Oct 31, 2019 ... INDEX · Base Curve (BC): This base curve determines what type of fit is required for the lens to meet the curve of your eye. · Power/Sphere (PWR/ ... 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 ... 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 ... Jun 1, 2019 ... What does it mean to be nearsighted? Nearsightedness (myopia) is the ... For example, if the axis is 180 degrees the astigmatism is horizontal. 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 ... ... 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 ... If you do not have astigmatism, the CYL and AXIS boxes will be blank. ADD is ... This ensures your prescription for glasses or contact lenses is always up to date ... May 28, 2021 ... What does CYL (cylinder) mean in a prescription? CYL, or cylinder ... contact lenses are directly on your eyes. In other words, because ... CYL means cylinder. This measurement is only recorded on your prescription if you have astigmatism. Astigmatism is any abnormality in the curvature of the ...