What questions should I ask when choosing a provider for these specialized lens fittings?

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! Aug 28, 2015 ... Overall, the prescription layout is pretty similar as there is the designation for left and right eyes (OS/OD), the prescription power (SPH, CYL ... The goal of RGP lens centration is to ensure that the visual axis remains within the back optic zone diameter (BOZD) for as long as possible to optimise visual ... You need to know what these mean if you want to know how to understand your eye prescription. ... Axis: This explains where the irregular curve that is affecting ... 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 ... The astigmatism contact lens package contains numbers along with letters such as AXIS and CYL. Do you know the meaning of these letters and numbers?This ... Dec 14, 2023 ... If you're asking yourself, "What does OD vs OS mean?", you're in the ... Axis: Paired with the CYL, this number (between 0 and 180) ... Jan 18, 2023 ... Yeah I meant one eye is cyl -1.00 and the other is -0.25. I did get this brand from an optometrist about 5 years ago and they've always been ... For example, an axis of 180 degrees means your astigmatism is horizontal. ADD. If you see this on your prescription, it means additional lens powers are needed ... 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.