There are two separate issues here.
One is the drop of visual acuity due to focussing error:
your 20/xx score without glasses or contacts.
The other is how well the visual/neural system can perforn when in optimum focus. This is for many people near 20/20, but some can do better, and some will never get 20/20 whatever optical correction is used, spectacle contact or laser, due to a limitation somewhere else in the system.
(think film photography: you can fiddle with your camera all you like, but if the processing lab is poor, you're not going to get pin sharp pictures.)
Lasik, glasses and contacts all aim to throw the eye into "good focus". How good that is hangs on the clarity and smoothness of the cornea and crystallline lens, the grain of the macula and the neural processing.
Now, with lasik it's extremely likely that your vision without glasses will improve. If the Rx result comes out very near zero, the *unaided* vision could be 20/20 or better, depending how well the rest of the eye works.
But for a good number people the best vision after lasik will be detectably worse than the best with *with* glasses before lasik, since the quality of the cornea will have been reduced.
(detectable, that is, by careful examination: not necessarily in the day-to-day experience of the patient)
For some this reduction in quality shows in flare and halos, especially at night, but more rarely it can even affect the best line that can be read on a high contrast letter chart.
(It's often more obvious on a contrast censitivity chart, where the letter don't get smaller but get greyer, paler, on each line.)
So, to return you your original question, if you've had better than 20/20 unaided or with glasses in the past, then better than 20/20 is a possible outcome with lasik. But it's not assured.
2007-12-28 00:07:44
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answer #1
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answered by Pedestal 42 7
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We get blurry vision because of blurry vision habits. Arificial corrections(glasses, contacts, surgery), do not address the way we use our eyes, mind, and body together. With blurry vision habits, we don't have the capacity to see beyond the blurr we have. Because of this, when we try to impose clarity on our vision system up to 20/20 vision, it is it's own burden and strain which leads to more blurr in the future. This strain is different than the strain to see clearly, it is an effort to maintain eye shape in order to continue to see clearly through artificial corrections. A doctor may put a prescription on a person that should give them 20/15 vision, but their brain often would not be able to comprehend it or maintain it very long because of blurry vision habits. The only way to get true effortless 20/15 to 20/10 vision is to unlearn the blurry vision habits and reintegrate the clear vision behaviors. Artificial corrections are only temporary before we have to get stronger ones. Also we should avoid most things that talk about eye exercises, their ideas generally has nothing to do with Natural Perfect Eyesight. Eye nutrition is good, but will not change the way we use our vision.
2016-03-16 07:54:57
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answer #2
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answered by ? 4
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Most people believe that once they are diagnosed with some vision problem and start wearing eye glasses or contact lenses to correct them, they will have to do so for life in order to see better. Those who want a permanent solution to improve eyesight typically resort to Lasik or other corrective eye surgeries. But you you can also improve your vision without surgery and can see perfectly well without using eyeglasses or contact lenses. You can check here to know how https://tr.im/d5f13
2015-01-27 09:00:42
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answer #3
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answered by Anonymous
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but with lasik the vision will degrade in few years and you start to see light refractions at night which are annoying. Not worth it in my opinion.
2007-12-27 17:44:42
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answer #4
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answered by Bobby K 3
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Improve Your Eyesight Naturally
2016-05-15 00:06:39
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answer #5
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answered by ? 4
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20/10 pretty much impossible 20/20 or a tiny bit better will be the best u can get.
2007-12-27 16:27:02
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answer #6
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answered by lndyc4 2
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I have heard that this is possible....I believe it is.
2007-12-27 16:26:34
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answer #7
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answered by Chaz 6
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