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Reading Glasses Calculator

Find your ideal reading power based on age and working distance

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Reading Add Power by Age

Age RangeTypical AddWhat to Expect
40-44+1.00First signs of presbyopia
45-49+1.50Noticeable difficulty with small print
50-54+1.75Need readers for most near tasks
55-59+2.00Consistent near vision needs
60-64+2.25Limited accommodation remaining
65++2.50Maximum typical add (presbyopia complete)

These are typical starting points. Individual needs vary - always confirm with an eye exam.

Frequently Asked Questions

Reading power is primarily based on age (due to presbyopia progression) and working distance. As we age, the lens inside our eye loses flexibility, requiring additional plus power for near tasks. The standard reading distance is 40cm (16 inches), but your specific needs may vary based on hobbies or work.