What is CYL, AXIS and SPH in eye prescription? | Lensmart Online
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Ax For Separation Of Parts In Crack Of Wooden Cylinder And Protective Glasses And Gloves On Stump, Harvesting Firewood For Heating Season In Winter Stock Photo, Picture And Royalty Free Image. Image
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What do SPH, CYL, AXIS, ADD, and PD mean in a glasses prescription? - Quora
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Eye Prescriptions (Meaning of SPH, CYL, AXIS)
Understand your prescription
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