ask me about eyes

[Lyric]

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I found an old prescription of mine from 5-6 years ago. My eyes were -3.00 and -4.00 (the first number, I also had some astigmistism).

I just had my eyes tested last week and the first number -1.50 for one eye and -1.75 for the other.

Is it common for eyes to change that much in a few years? I'm 35 years old, if that matters.

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your prescription dropped by quite a bit. No it is not common for it to drop that much....not until your 40's anyways.

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What causes the vision to get better as we age? People often have better vision around 40 yrs old? This seems backwards to me.

[slim]

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I found an old prescription of mine from 5-6 years ago. My eyes were -3.00 and -4.00 (the first number, I also had some astigmistism).

I just had my eyes tested last week and the first number -1.50 for one eye and -1.75 for the other.

Is it common for eyes to change that much in a few years? I'm 35 years old, if that matters.

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your prescription dropped by quite a bit. No it is not common for it to drop that much....not until your 40's anyways.

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What causes the vision to get better as we age? People often have better vision around 40 yrs old? This seems backwards to me.

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First, we need to make a distinction between "vision" and "prescription". Your best corrected "vision" never gets better even if your "prescription" gets better with age. For example, assume you are a healthy 18 years old and have a presicription of -5.00......through your glasses or contacts you will see a crisp and clear 20/20. As you age and get to 40 years old, your prescription may become -4.00 (which is an improvement) but your vision thrrough your glasses will NOT be better than when you were 18 years old. It may still be 20/20, but the crispness and vividness of your vision will not be like it once was. The reason why your vision will never be as clear as when you are young is because the transparency of the structures inside the eye gradually diminishes with age for EVERYBODY. The aging changes inside the human lens and vitreous and other structures causes the index of refraction to shift over time and that is why your prescription may improve with age.The corneal curvature can change with time as well and cause a shift in prescription.