How Do You Know What Strength Reading Glasses To Get

Your prescription may or may not have any numbers in the cylinder axis and prism columns.

Non prescription reading glasses usually range in power from 0 75 dioptre to 3 00 dioptres d. To the number of each line there is a number indicating the prescription power you need. This range starts at 0 75 diopters or magnification for those ages 40 to 43. Left eye sphere is 1 50 add is 1 75.

Both lenses have the same power which usually is indicated with a removal sticker on the lenses and or a permanent marking on the inside of the frame. When you can clearly read a line stop and look to the strength listed for that line. Follow the instructions for determining up close vision above. The next step is to get a pair of reading glasses at that strength and try the diopter test again.

In those cases you can opt for a slightly stronger lens strength. Reading glasses typically start with a near vision or nv a strength of 1 0 and progress in strength by 25 diopters. For ordering prescription reading glasses online you can enter the reading glasses power in the add column of prescription information. Then hold the page about 12 to 14 inches from your face.

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Start at the first line and move to lower lens strengths to determine the most appropriate fit. To find the strength you need read the following test chart without glasses from a distance of about 14 inches. Reading glasses strength for computer distance reading approx. Make sure you hold the chart at 12 14 inches away and no further.

Glasses with 1 25 label are considered low lens power while 3 5 4 0 are considered high power however it is rare to find such high lens strength. An accurate way to determine your proper reading glasses power is to take the dr. Strength of reading glasses is 1 50 1 75 3 25. The strength listed is the proper strength you ll need for your reading glasses strength 3 25 2 75 2 50 2 25 2 00 1 75 1 50 1 25 1 00 if you can read this 3 25 is the proper strength for you.

Don t forget the cylinder and the axis. The first line you have difficulty reading has the lens strength to the right. Without glasses or contact lenses read the top line which normally has the smallest font. This is the correct optical power to order.

You may find that the 1 00 strength isn t quite strong enough. Once you have determined your reading glasses strength use the chart below to determine your computer distance strength. S reading glasses strength test also known as a diopter test. When recommending reading glasses for their patients optometrists typically use a range based on different age groups.

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If you need below 3 00 you can get your reading glasses over the counter. Move down the chart up to where you will get a line that you can clearly read.