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What does the Add Column mean in an eyeglass prescription?

Table of Contents

  • What does the Add Column mean in an eyeglass prescription?
  • What does 090 Axis mean?
  • Which eye is left and right on prescription?
  • What does SPH in the cylinder column mean?

What does the Add Column mean in an eyeglass prescription?

ADD. Add stands for Addition. It stands for the additional correction that you need for reading. It is used in bifocal glasses, reading glasses, or varifocal glasses. It represents the additional power over the distance prescription.

What is a 005 axis for glasses?

Axis (AXI) – The axis value is the angle of the astigmatism correction. If you have a cylinder reading on your prescription then you should have an axis reading. An axis of 5 (or 05) is the same as 005; 90 are the same as 090.

What does 090 Axis mean?

The axis number on your prescription tells your optician in which direction they must position any cylindrical power in your lenses (required for people with astigmatism). This number shows the orientation or angle in degrees from 1 to 180. The number 90 means vertical position and 180 horizontal.

What does sphere PL mean for glasses?

If the sphere indicates “Pl” or “Plano” for both eyes, it means that you do not suffer from myopia or hyperopia. A positive sphere indicates hyperopia. People affected by farsightedness have either an eyeball that is too short, or a retina curvature of that is not pronounced enough.

Which eye is left and right on prescription?

O.D.- This is oculus dexter, meaning right eye. O.S.- This is oculus sinister, meaning left eye. O.U.- This is oculus uterque, meaning both eyes. Along the top, you might see different verbiage that generally has to do with measurements related to different aspects of your vision.

What is a normal axis for glasses?

If you have “normal” eyesight, there would not be an axis number, as you would not have astigmatism. However, the most “normal” eyes with this condition would tend to have approximately 0.50 dioptres of negative cylinder power with a 180 axis number.

What does SPH in the cylinder column mean?

If there is “DS” or “Sph” or “Spherical” in the Cylinder space it indicates no correction is needed.

How do I know what CYL my glasses are?

Cylinder (CYL) It always follows the sphere power on an eyeglass prescription. The number in the cylinder column may have a minus sign (for correction of nearsighted astigmatism) or a plus sign (for farsighted astigmatism).

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