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Over correction vs under correction of contact lens

So I just got prescribed new contact lenses and on the left eye I see a bit clearer - he gave me -2.50 for the left eye and 2.25 for the right. I asked him why and he said I have a stronger astigmatism on the right that's why it's a bit less but he said it's ok. So I said let me try 2.50 on the right eye and the doctor put it on and he asked me if it got clearer but smaller also? I said yes . He told me that' if he gives me 2.50 also on the right eye it would be over corrected . Is it such a big deal to be over corrected? If I see a bit clearer won't I be happier? I mean it's not bad it's like 20/20 for left eye and 20/20.5 for the right eye lol
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177275 tn?1511755244
a quarter of a diopter is not going to make any difference. .75 or more would make your eye tired from having to focus extra to neutralize the excess minus lens
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Avatar universal
Would an over correction be bad? Like if let's say I switched it would an over correction make my eyesight worse or something in the long run?
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Avatar universal
Hi thanks for the response. I am wearing the ones he gave me and I honestly can't tell the difference at all. The only reason I noticed it was when I was reading off the eye chart the smallest letters. It seemed the left eye was a bit clearer so he put the lens over my right eye and asked if it got smaller I said yes he told me it would be over corrected then I should just leave it and I prob won't notice any difference and I really don't so I'm prob just gonna stick with what he gave me
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177275 tn?1511755244
As the numbers get bigger the minus lens minify more. That's why myopes generally see better with contacts than glasses the image is larger with contacts. You've looked through a -2.25 and a -2.50 ask for the one that is the clearest and most comfortable. Most people can't tell the difference.
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177275 tn?1511755244
Kansas City, MO
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Grand Prairie, TX
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