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Reposting here because it might have been off-topic. This is just a summary so people don't have to go to the sites listed at the end.
Glasses, specifically minus lenses, have serious side effects that the medical establishment conveniently ignores.
You may have heard:
Grandma was right. Although you won't go blind, you may become nearsighted. It’s not a myth that your eyes get worse. It’s the process of progressive myopia.
Myopia is commonly called nearsightedness. It is the condition of seeing near objects clearly but having difficulty or blur when seeing distant objects.
Minus lenses make the light rays appear to come from a closer source, allowing your eyes to focus them sharply again. A lens with -1 diopter will take rays coming from infinity and make them appear as if they were from 1 meter away. -2 diopters for an apparent source 0.5m away. And -3 diopters for a source 0.33m away, which is about 1 foot.
Most animals spend their time looking off into the distance. So it would be good if the eyes could focus on distant objects while at rest. The consistent strain of focusing eventually leads the eyeball to elongate. Then, the light is able to focus on the retina without compressing the lens for more focusing power. Unfortunately, humans spend lots of time reading books, phones, and doing other visual work at close range. So eye’s adaptive processes may overshoot.
Most people are told to wear their glasses all the time. But chances are whatever situation caused mild myopia in the first place is still present. This is the perfect setup for progressive myopia. Which leads to annual eye exams and new glasses every year or two. Cha-ching!
RX, focus, Snellen chart
-1 D 3.2 ft. 20/50
-2 D 1.6 ft. 20/120
-3 D 1.0 ft. 20/300
Once your eyes pass -2 diopters, you are dependent on glasses for daily living. It’s one of the worst addictions in the country. Yes, myopia can be reduced but it could take years. High myopia has other risks as well, like retinal detachment.
Without glasses it is unlikely that anyone would develop more than -3 diopters of myopia. But that still qualifies as legally blind without glasses.
h11ps_endmyopia_org An excellent resource. Explains how to measure your vision at home. And has suggestions for reducing your prescription over time.
h11ps_myopia_org An older site, but still excellent. Promotes the use of plus lenses for reading.
Interesting info. Thanks for sharing it. When I was a kid, I had an older relative that refused to wear glasses because he said they'd make his eyes worse. I was too young to have an opinion on it, but I always remembered it. Maybe he was ahead of his time. 🤔