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Does wearing glasses weaken your eyesight? (2014)

bbc.com

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Re: Does wearing glasses weaken your eyesight? (2014)

#2

Post by danjc »

What an absurd article. It makes a totally unsubstantiated statement near the beginning:

"Whether or not you choose to wear your reading glasses will make no difference to your eyesight in the long run..."

Then goes on to conclude:

"But, returning to adults, what I find curious is the lack of studies that have been carried out in this area."

Re: Does wearing glasses weaken your eyesight? (2014)

#4

Post by codingdave »

danjc wrote: post #2

What an absurd article. It makes a totally unsubstantiated statement near the beginning: "Whether or not you choose to wear your reading glasses will make no difference to your eyesight in the long run..." Then goes on to conclude: "But, returning to adults, what I find curious is the lack of studies that have been carried out in this area."

It substantiated that statement by talking about age-related longsightedness as coming from the stiffening of your eye, not from any impact given by reading glasses. You get older, your eyes age along with the rest of you.

Re: Does wearing glasses weaken your eyesight? (2014)

#7

Post by drdaeman »

> if they don’t have the right glasses they can develop so-called “lazy-eye” or amblyopia because they’ve never had a sharp image on their retina

I am not a doctor but this sounds strange to me. (I had amblyopia so I have read a little bit about it.)

One eye's vision needs to be significantly different from another, to the extent brain "decides" it cannot merge images and goes mono-ocular.

This trivially happens with e.g. strabismus, when eyes look at different directions. But with poor eyesight corrected with sub-optimal lenses, it would require that only one eye sees significantly blurry image while another eye sees sharp enough (otherwise person would squint or tilt glasses, adjusting for both eyes - so, no reason for amblyopia to develop).

It is not unusual that a person may have different eyesight with their left and right eye (IIRC that's called anisometropia), but I think it must be quite unusual to have glasses that fail to account for this. Even if glasses are sub-optimal, the difference should be consistent, shouldn't it?

Re: Does wearing glasses weaken your eyesight? (2014)

#8

Post by Sharlin »

emsy wrote: post #6
neves wrote: post #5

Earlier quoted context omitted.

you missed a dot after "no"

Thanks. I inserted a line break but HN handles them weirdly.

Whitespace gets mostly passed straight to the browser, meaning newlines, tabs, and consecutive spaces get rendered as a single space. The exceptions are: two consecutive newlines start a new paragraph, and two spaces at the start of a line denote a preformatted (“code”) block.
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