+1.00 reading glasses
Typical for ages 40 to 44. Here is what the number means and how to tell whether it is right for you.
- Focuses at
- 39 in (100 cm)
- Typical age
- 40 to 44
- For a screen instead
- None needed
- Chart print size
- 6 point
The +1.00 line
Hold the screen 14 in (35 cm) away without glasses. If this is the smallest print you can read clearly, +1.00 is a good strength to try.
- The small print says the offer ends at midnight on Friday. +1.00
What +1.00 means
The number is the power of the lenses in diopters. A +1.00 lens brings things into focus at 39 in (100 cm) for an eye that has no close-up focus of its own. Your eyes add their remaining focus on top, which is why +1.00 readers work at normal reading distance for people who still have some.
This is a low strength. It suits people who are just starting to notice small print getting harder.
Who typically uses +1.00
It is a common strength for ages 40 to 44. Age is only a guide. The test gives a figure based on your own eyes.
+1.00 compared with +1.25
+1.25 is one step stronger. Move up only if small print is still soft with +1.00 after twenty minutes of reading.
Using +1.00 at a computer
If +1.00 suits you for reading, you probably need no glasses for a monitor at 24 in (61 cm). Wearing your reading strength at a monitor makes you lean in. See reading glasses for computer use.
Questions about +1.00
What does +1.00 mean on reading glasses?
It is the lens power in diopters. The plus sign means the lens adds focusing power for near vision. A +1.00 lens focuses at 39 in (100 cm).
Is +1.00 a strong prescription for reading glasses?
This is a low strength. It suits people who are just starting to notice small print getting harder.
What age needs +1.00 reading glasses?
Published age charts put +1.00 at ages 40 to 44. People vary, so test your own eyes rather than going by age alone.
Can I wear +1.00 readers all day?
They will not harm your eyes, but everything beyond arm's length looks blurred through them. Take them off, or look over the top, when you look up. More in wearing reading glasses all the time.