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How do I determine what reading glasses power I need?

2022-03-24 17:54:44


If you’re new to reading glasses and aren’t sure where to start, we’ve made it easy to figure out your reading power.

Option #1: Use a Printable Diopter Reading Test Card

Diopter test charts have rows of words ranging in text size that correspond to reading glasses strengths. If you’re purchasing reading glasses online, you can use our printable diopter chart below. With the printed sheet 14″ away, attempt to read the top line without reading glasses. Continue down the chart until you find a line you can read clearly without your glasses on – this is the diopter (power/magnification) you need.

Tip: Make sure to remove your glasses when you use the diopter test. If you have different vision needs in your right and left eye, simply cover up one eye at a time to test each eye individually.

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Option #2Finding Your Reading Glasses Power by Age

Sometimes the reading glasses power by age table can also be useful to determine the right pair of reading glasses for you.

Age RangeStrength
40 - 45+1.00
46 - 50+1.50
51 - 55+2.00
56 - 60+2.50
61 - 65+3.00
66 - 70+3.50
71++4.00

This recommendation is also most likely to help you get suitable reading glasses.