What your prescription says about your eyes?
In general, the further away from zero the number on your prescription, the worse your eyesight and the more vision correction (stronger prescription) you need. A “plus” (+) sign in front of the number means you are farsighted, and a “minus” (-) sign means you are nearsighted.
Where are the OD and OS numbers on a glasses prescription?
Most of the time, OD and OS are indicated on the left of your prescription and the following numbers show each eye’s specific needs. Some glasses prescriptions also include additional numbers such as: Prism: measured in prismatic diopter (p.d.). It is required when eye alignment needs assistance.
What are the numbers on the eye test?
Understanding your eye test results: the numbers explained The numbers on your spectacle prescription are shown for your right eye (indicated as RE or sometimes OD – the Latin for oculus dexter, meaning right eye) and your left eye (LE or OS – oculus sinister).
What does a spectacle prescription tell you about your eye?
In simple, concise terms, your spectacle prescription is a measure of how short-sighted or long-sighted you are in each eye, as well as how much astigmatism you have and which part of your eye is more curved than the other. Wait, what’s astigmatism again? This causes a lot of confusion!
Is the eyeglasses prescription the same for both eyes?
You will most likely have the same number for both eyes that usually ranges between +0.75 and +3.00. Occasionally, lower add powers than +0.75 can be found on a prescription. These are for Anti-Fatigue lenses such as our SightRelax lenses. There is a separate prescription for your right eye and your left eye.
What do the numbers in your eye prescription mean?
But there’s more the numbers in your prescription can tell you, about nearsightedness, farsightedness (including presbyopia) and astigmatism. First things first — before we get to measurements, we have to be able to differentiate between right and left.
Do you have to have a prescription for each eye?
The eye doctor must indicate the unique prescription for each eye because it is common for people to have variations in the clarity of their eyes. One exception is in the bifocal magnifying power for presbyopia, which is typically the same for both eyes.
How to read your eyeglass prescription for the first time?
1 OS (Oculus Sinister): Left eye 2 OD (Oculus Dexter): Right eye 3 OU: Both eyes
Most of the time, OD and OS are indicated on the left of your prescription and the following numbers show each eye’s specific needs. Some glasses prescriptions also include additional numbers such as: Prism: measured in prismatic diopter (p.d.). It is required when eye alignment needs assistance.