3 doctors weighed in:
What do sph, cyl and axis mean on an eye test?
3 doctors weighed in

Dr. Daniel Bustos
Ophthalmology
1 doctor agrees
In brief: Specific parts of Rx
To expand on dr. Proffitt's answer, sph = sphere; if this is a negative number, the prescription is a myopic or nearsighted prescription and a positive number dictates a farsighted or hyperopic prescription.
Cyl = cylinder or the amount or power of the astigmatism correction. Axis is the direction in which the astigmatism correction is placed in the glasses.

In brief: Specific parts of Rx
To expand on dr. Proffitt's answer, sph = sphere; if this is a negative number, the prescription is a myopic or nearsighted prescription and a positive number dictates a farsighted or hyperopic prescription.
Cyl = cylinder or the amount or power of the astigmatism correction. Axis is the direction in which the astigmatism correction is placed in the glasses.
Dr. Daniel Bustos
Dr. Daniel Bustos
Thank
Dr. Danny Proffitt
Family Medicine
1 doctor agrees
In brief: Shape of eye
These are terms used by the od or md to describe measurements of the shape of the eye.
They determine your prescription. They are probably meaningless to you. Important for the dispenser of your eye wear.

In brief: Shape of eye
These are terms used by the od or md to describe measurements of the shape of the eye.
They determine your prescription. They are probably meaningless to you. Important for the dispenser of your eye wear.
Dr. Danny Proffitt
Dr. Danny Proffitt
Thank
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