How To Read Your Eye Prescription

It indicates the amount of lens power needed to correct astigmatism measured in diopters.

How to read your eye prescription. Cylinder abbreviated cyl follows sphere power in your eyeglass prescription. E g 62 single pd 33 31 dual pd or 62 60 distance pd near pd. They are latin abbreviations. Sometimes figures like this appear on your prescription. You ll first need to scan an onscreen qr code then hold the credit card up to the screen and scan that.

We can provide lenses with a prism correction but you ll need to contact us to discuss this. If you re near sighted or far sighted check the sph column to find out how strong your lenses need to be. Sphere sph and cylinder cyl always have a or sign. Le stands for you guessed it left eye. You might see this instead of od because some optometrists have stopped using the latin names.

If you need a prism for one or both eyes it will look similar to this. If this column is blank it means you have no astigmatism. Os oculus sinister means the left eye and od oculus. If the number contains a minus sign it means it is correcting nearsighted astigmatism. Some prescriptions have this figure which looks like a sideways 8.

From there you ll hold your glasses between the phone and the screen for various readings. On any prescription pd can be written in different ways. Before filling a prescription you also need what s called a contact lens fitting to see if they re right for you. So the numbers and letters corresponding to the os row or column may not match your right eye. To read an eyeglass prescription look for the labels o d and o s which stand for right eye and left eye respectively.

A higher number regardless of whether there is a plus or minus sign means you ll need a stronger prescription. A contact lens prescription includes measurements specific to the size and brand of your contacts. Because contacts sit directly on the eye the prescription is different than one for eyeglasses. When you look at your prescription for eyeglasses you will see numbers listed under the headings of os and od. Similarly to the sph there.