What are the 3 numbers on eye prescription?
1) The eye size number (it is the size of the lenses on your frame). 2) The bridge size number (the distance between the lenses). 3) The temple length number (it is the size of that part of your eyeglass frame, which rests upon your ears).
What do lens prescription numbers mean?
These numbers represent diopters, the unit used to measure the correction, or focusing power, of the lens your eye requires. Diopter is often abbreviated “D.” For example, if your prescription says -1.00, you have one diopter of nearsightedness.
How do I read my contact lens prescription?
- Eye – Which eyes the prescription line item is for. …
- SPH – Sphere (this can also be referred to as Power or PWR)
- BC – Base Curve (usually a number between 8 and 10)
- DIA – Diameter (usually a number between 13 and 15)
- Brand – The brand/type of contact lens that your doctor has fitted you for.
Does eye prescription 1.25 mean?
A 1.25 eye prescription is not bad. It is considered relatively mild and some people won’t need prescription eyewear for it.
Is 175 Axis bad?
The last and 3rd number (180 and 175) is the axis, or the direction of your astigmatism. An axis of 180 degrees, for example, means the astigmatism is horizontal. Therefore, this prescription means that the patient is moderately nearsighted, with a moderate degree of astigmatism in a horizontal direction.
What is normal eye axis?
If the axis is 180 degrees, you may see it noted as x180. Those with a “normal” eye axis will not see these values in their eyeglass prescriptions. This is because these people do not have astigmatism. People with a normal eye axis have strong and clear vision.