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en.wikipedia.org/wiki/Eyeglass_prescription

An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist ... The power of a toric lens can be specified by describing how the cylinder (the meridian that ... That means the spherical power describes the most divergent meridian and the cylindrical component describes the most convergent.

www.allaboutvision.com/eyeglasses/eyeglass-prescription.htm

(If that's not the case, and you need to see an eye doctor, click here to find one near you.) But what do all those numbers on your eyeglass prescription mean?

www.webmd.com/eye-health/how-read-eye-glass-prescription

Dec 4, 2015 ... WebMD helps you understand what your eyeglass prescription means. ... The C refers to the "cylinder" or astigmatism, and can be a negative or ...

www.lenscrafters.com/lc-us/vision-guide/glasses-prescription

SPH(or Sphere) indicates the eyeglass prescription power, or how strong your ... If your vision correction is single vision, that means your lens power corrects for ...

essilorusa.com/newsroom/decoding-your-eye-glass-prescription

Sometimes a prescription will include the letters “OU,” oculus unitas meaning both ... While using the Latin abbreviations is traditional for eyeglass prescriptions, ... Astigmatism is a condition where the eye does not focus light evenly onto the ...

www.aclens.com/Content/Display/172

This means you do not have an astigmatism correction in one or both eyes. AC Lens can create lenses for prescriptions with Cylinder ranges between -5.00 and  ...

www.coastal.com/thelook/how-to-read-glasses-contact-lens-prescriptions

Ensuring healthy eyes starts with knowing how to read your glasses and contact lens prescriptions. Optician ... What do the numbers on my prescription mean?

www.vsp.com/glasses-prescription.html

VSP can help you decode your glasses prescription. You'll ... These are all refractive errors that simply mean your eyes have trouble focusing light correctly.

www.eyesite.co.uk/eye-health/eye-examinations/existing-patient-eye-exams/your-prescription

Here at Eyesite we are committed to clearly explaining our assessment of your eyesight to you. Once we've complete your eye examination our optometrist will ...