Vision – Separating Fact from Fiction (1)
I googled a basketful of folk tales about ophthalmology and took them to eye surgeon Arthur Benjamin. Some were debunked, but some were confirmed.
“The results from laser correction surgery don’t meet expectation. Doctors would never perform Lasik on their own eyes”.
Laser vision correction is an operation that doctors willingly perform on themselves (I am one of the examples), their children, parents, wives, and mother-in-laws. I’ll be straight-forward: the operation to get rid of myopia and astigmatism has stable results and is safe-enough, if you’re in the hands of an experienced surgeon with modern equipment. Candidacy for surgery depends on a multitude of factors. If your vision is -10, it’s unlikely you’ll be suitable for Lasik, but there are other methods of surgical correction.
And with farsightedness it works out the same?
Not quite. In that case, laser correction is not permanent, but it will be good for 10 years. The fact is that the processes that lead to farsightedness do not stop.
There’s an idea that glasses negatively affect vision. The eyes become accustomed to good vision and then deteriorate.
Wearing glasses neither hurts nor helps vision. When in doubt, it’s generally better to go with glasses. You put on glasses and the brain adapts to good eyesight, but anatomically and physiologically nothing changes. However, if you stop wearing them, the brain forgets again how you saw every single needle on the fir tree. If you have age-related farsightedness, you’re 43, and you can’t see your phone or make out a price tag, you can put on glasses and see everything again. But upon removing them, you decide that now you see everything worse than before. The only time you need to be exceedingly careful as to when to wear or not wear glasses is with children and children’s myopia.
Then there’s the thing about carrots again. In all grandmothers’ recipes are blueberries, honey, spinach, carrots, as the surest means to preserve visual acuity. Is this the case?
In earlier times, and in countries that will remain nameless, there was not enough produce, and thus there was a shortage of micronutrients, vitamins, and minerals. Now you can find them in any supermarket. Even if you eat the simplest and most inexpensive meals, there’s enough of all these elements. But with macular degeneration, exposure to ultraviolet light, or exposure to cosmic radiation, it can start to not be enough. One study found that if you take beta-carotene and zinc in certain doses, it really slows down the process of macular degeneration. You should be careful here, as well, because there are several different kinds of vitamins. Supposedly, this same beta-carotene (found in carrots) is dangerous for smokers, and makes them more susceptible to lung cancer.
So is it better for a smoker not to eat carrots?
It’s better for smokers to just quit smoking.
Or start smoking carrots.
(to be continued)
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