Mental speed is high until age sixty

Re:Mental speed is high until age sixty by sandworm101 on Monday April 18, 2022 @07:57AM (#31069551)

A great many people get glasses at 6, not 60, and thier vision is in decline before highschool. It is a widespread and very modern problem. In a couple decades the concept of reading glasses might be gone. Everyone may be in glasses 24/7 starting long before age-related decline.

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Re:Mental speed is high until age sixty by loudmax on Monday April 18, 2022 @08:25AM (#31069746)

Most people who need glasses at a young age are nearsighted. That is, their eyes can focus on near objects, but they need glasses to clearly see objects far away.

Vision decline in old age is frequently associated with farsightedness. Old people have more difficulty focusing on close objects, so they get reading glasses.

I've been nearsighted for most of my life. I've always worn glasses to drive a car, but glasses didn't impede my near vision until after I turned 40. Today I wear progressive bifocals when I drive so I can see the road, but also read the speedometer or the navigation app on my phone. Before I turned 40 regular glasses didn't prevent me from seeing the dashboard clearly.

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Re:Mental speed is high until age sixty by sandworm101 on Monday April 18, 2022 @08:31AM (#31069790)

As i predicted, your use of glasses in all circumstances has usurped the concept of reading glasses. Since you are using modern bi/trifocals you probably will just keep using those rather than have dedicated reading glasses that you switch to for close-in reading.

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Re:Mental speed is high until age sixty by antiterra on Monday April 18, 2022 @09:26AM (#31070231)

Even ignoring your omission of contact lenses, that doesn’t follow.

I have been wearing glasses since I was young and it has very little to do with how I feel about reading glasses. Bifocals are awful if you saccade regularly instead of moving your head, add that to astigmatism correction and it’s like you’re viewing the world through the portals of a bathysphere.

I will likely always be able to just take my glasses off and read. But when I wear contacts, reading glasses are my preferred option.

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Re:Mental speed is high until age sixty by mellavora on Monday April 18, 2022 @08:48AM (#31069918)

This is pretty strongly linked to insufficient time outdoors in natural light.

Age-related vision change is a different beast.

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