Asked by: Myrian Gamechomedical health eye and vision conditions
What does the axis number mean in an eye prescription?
Last Updated: 1st May, 2020
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Correspondingly, what does axis mean in eye prescription?
Answer: The axis number on yourprescription tells your optician in which direction theymust position any cylindrical power in your lenses (required forpeople with astigmatism). This number shows the orientation orangle in degrees from 1 to 180. The number 90 means verticalposition and 180 horizontal.
Furthermore, is astigmatism 180 Axis bad? Reading Astigmatism Correction On YourPrescription The AXIS number represents the degree of theangle at which the cylinder is placed on your corrective lenses.Your AXIS number will be a whole number between 1 and180. This translates to AXIS numbers of 5 and90.
Thereof, what do the numbers on an eye prescription mean?
Glasses - How to Read Your EyeglassPrescription They are Latin abbreviations: OS (oculus sinister)means the left eye and OD (oculus dextrus) means the righteye. These numbers represent diopters, the unit usedto measure the correction, or focusing power, of the lens youreye requires.
What is Sphere cylinder and axis in eye prescription?
The term "sphere" is essentially the degree ofcorrection needed to correct your near or farsightedness.Cylinder (CYL): The number indicates the lens powerneeded to correct astigmatism in your eyes. Axis: Theaxis indicates the orientation of astigmatism, measured indegrees from 1 to 180.