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Individuals ages 50 to 59 will generally need reading glasses that have a strength of +1.50 to +2.25 diopters. Those who are age 61 and up often need reading glasses that have a strength of +2.25 to +2.75 diopters. General age-related guidelines for reading glasses strengths: Reading Strength Tests.
Ages 40–49: +0.75 to +1.50 diopters. Ages 50–59: +1.50 to +2.25 diopters. Ages 61 and up: +2.25 to +2.75 diopters. In general, your first pair of reading glasses will be lower strength, and you’ll want to up their power when you notice text becoming less clear again.
Printing out our reading chart and following the instructions carefully will provide you with a very good idea as to the reading power you need, whether for up close reading or monitor viewing. Getting an eye exam is the best way to determine exactly what kind of correction you need for any distance.
Most 40-year-olds can start with low-strength reading glasses (+1.25 or +1.5), increasing to higher-strength readers every few years. By their 60s, most people will need reading glasses with a strength of +2.5 or higher to read comfortably and clearly.
You may also be able to determine which strength of reading glasses you need by consulting a ‘power by age table’ like the one below: Age 40-44 – Recommended power +0.75 to +1.00 dioptre. Age 45-49 – Recommended power +1.00 to +1.50 dioptre. Age 50-54 – Recommended power +1.50 to +2.00 dioptre.
If you are 40 or older and are experiencing problems reading or seeing clearly, it might be time for reading glasses. Figuring out what glasses look the best on your face, what style and color you want, and what fit you want is easy. But how do you know what strength reading glasses to get? This guide breaks it all down.
Below are guidelines about what strength reading glasses may work for you based on your age: Ages 40 to 49: +0.75 to +1.50 diopters. Ages 50 to 59: +1.50 to +2.25 diopters. Ages 61 and up: +2.25 to +2.75 diopters.