What Do The Numbers On My Glasses Mean

Camila Farah

When you re on the course you can make small requests like this. But what does it all mean. Your glasses lenses will be thicker in the centre and thinner at the edges and make things look bigger including your eyes.

What Do Those Numbers Mean On The Inside Of Eyeglass Frames Eyeglasses Frames Eyeglasses Frame

There are three numbers printed on the inside of the temples.

If you already wear glasses it s easy to find this information. Numbers and letters on lenses what does 18 55mm mean. You ll notice a number like 51 16 142 printed on the inside of the frames. The next number in the sample eyeglass prescription is 0 50.

Do you ever wonder about the weird numbers on your glasses. These are the numbers that will be modified for your prescription to correct for either nearsightedness farsightedness or astigmatism. These numbers describe the size of your eyeglasses frames specifically. If you look harder at other stores you will find readers starting as low as 1 00 and then 1 25 as well as the 1 50 2 00 and 3 00 s that you already found.

These numbers denote three vital pieces of information about your glasses frame size. On an eyeglasses prescription os stands for oculus sinister which refers to the left eye. This number represents the cylinder part of the prescription which measures the degree of astigmatism representing the difference in curvature and power between two points on the eye separated by 90 degrees. The plus sign in front of the number means you are long sighted.

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Your size may look something like 49 21 145. Next look at the first three columns on the prescription which have numbers in them sphere cylinder and axis. This refers to the focal length of your lens. Very simply those numbers are the magnification of the lens power.

The key measurements that describe eyeglass sizes are the eye size bridge width and temple length. These numbers usually appear on the inner surface of one of the frame temples the long stems of the frames that hold your glasses in place behind your ears. So i assume that you were looking at over the counter readers which they sell at numerous stores. This was another requested post from barbara who s on my video training course.

Let s start with an easy one. Online shopping means you have a lot more frames to choose from yay but you also need to know what size fits your face wait what. Oculus sinister left eye. 18mm is wide angle and 55mm is more zoomed.

These numbers describe the size of your eyeglass frames specifically. A minus sign means you are myopic short sighted. You might think of it as a normal number but it says a lot about your glasses dimensions. Os and od.

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Whether a or a large number indicates a stronger prescription. The key measurements that describe eyeglass sizes are the eye size bridge width and temple length. These numbers usually appear on the inner surface of one of the frame temples the long stems of the frames that hold your glasses in place behind your ears.