Quote:
Originally Posted by pdurrant
Reading glasses won't help you. Your eyes are -6.5ish (very similar to mine, in fact). That means you can see close-up without glasses. (Your prescription means that when not wearing any glasses your vision is the equivalent of a person with no prescription wearing +6 reading glasses.)
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Many people (and possibly Blossom as well) think reading glasses have to be +1, or +2 or whatever. That is true for people with no glasses.
You need the plus lenses to be able to focus up close. (That is why a normal lens on a photo camera needs a +1 to +10 screw-on macro lens as soon as you get closer than a certain distance: you're effectively putting 'reading glasses' on the camera.)
So, someone who has a -6 prescription for normal sight, and then needs a +2 correction for reading, will require -4 lenses in their reading glasses.
As you get older, your normal sight also moves towards the plus side. I moved from -9.25 / -7.5 to -7 and -5.25 for my normal glasses (in the time span of three months, a few years ago), and my computer glasses are now -5.5 and -3.25. (So, effectively +2 compared to my normal glasses).
Thus... it IS actually possible to start out with -1 in both eyes when you're 35....
Requiring a +2 correction for reading, putting your reading glasses at +1 when you're 40...
And then you move +1 for your normal sight, ending at 0 (ditching your glasses) and requiring +2 for reading when you're 45... and then move up to +2.5 or +3 for reading glasses by the time you're 55.