Why do glasses only improve our sight to around 20/20, instead of going to 20/10?
In: 7
The lens is only one part of your eye and that’s what glasses are correcting. If the other parts of your eye aren’t set up to see better than 20/20, changing the lens won’t fix that.
(Obviously things like binoculars exist, but you’re experiencing tradeoffs then for near vision.)
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