"SPH" Written in Cylinder section of prescription, along with no axis?
I found a glasses prescription, for the Cylindrical section, The left eye has a numerical value, but the right eye simply says: "SPH". Is this taken to mean, that the cylindrical for my right eye, is the same as the Spherical?
Also, AXIS is only defined for one eye, does this mean that the other one is assumed to be zero?
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I found the answer:
"CYL" in Spherical section, means no correction needed
"SPH" in Cylindrical section, means no correction needed
If AXIS is zero, that is shorthand way some O.D.'s use to write 180.
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