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A comment on Why are glasses so expensive? The eyewear industry prefers to keep that blurry. Parent comment

Re:Why are glasses so expensive? The eyewear industry prefer... by jolmg on Wednesday January 23, 2019 @03:16PM (#18982361)
> The worst case of wearing the wrong prescription is that you'll get a headache.

Doesn't using the wrong prescription worsen eyesight faster?

At least, it's been my general experience that when a child is curious about people's glasses and is given the glasses so they can experience the effect, they only let them try it for a couple seconds and are explained that using them for too long can cause damage to their eyesight (because it's the wrong prescription for them who have perfect eyesight). Is that a myth?

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Re:Why are glasses so expensive? The eyewear industry prefer... by feanaro on Thursday January 24, 2019 @02:44AM (#18986741)
Yes, it's a myth in the sense that you would need to wear the glasses several orders of magnitude longer and/or consistently for there to be any negative effects. Some people seem to think that even looking through the glasses will unleash demons into the healthy eye.

Modern research does point in the direction of the eye remodelling itself based on what kind of input you give it on a longer scale, though. This includes the amount of light seen during the day and whether it is able to focus rays or not. There are indications these play a role in the development of myopia.

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Re:Why are glasses so expensive? The eyewear industry prefer... by Aunche on Wednesday January 23, 2019 @04:26PM (#18983161)
The eyes don't care about what's in front of it. The brain does the image processing, so that's the only thing that's affected by a bad prescription. If your glasses are so wrong that it causes eye strain, it may cause damage, but you'd have to purposefully put yourself into that ordeal.

https://mayoclinichealthsystem.org/locations/la-crosse/servi...

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Re:Why are glasses so expensive? The eyewear industry prefer... by PavlikPaja on Wednesday January 23, 2019 @05:30PM (#18983824)
The eye very much does care what's in front of it. Look up "emmetropization".
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Re:Why are glasses so expensive? The eyewear industry prefer... by walterbell on Thursday January 24, 2019 @01:08AM (#18986371)
Try a web search for neuroplasticity.
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Re:Why are glasses so expensive? The eyewear industry prefer... by Domenic_S on Wednesday January 23, 2019 @04:13PM (#18983017)
The real reason is they don't want grubby hands smudging up their glasses :)
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Re:Why are glasses so expensive? The eyewear industry prefer... by jolmg on Wednesday January 23, 2019 @11:22PM (#18985951)
No... It's not like I've seen it only once or never talked about it with other people. It's general common sense or a common belief, even if it turns out to be false.
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