"Fredxx" wrote in message
...
On 11/02/2020 11:08:17, Dave Plowman (News) wrote:
In article ,
Fredxx wrote:
I'm with Tim here. A lot of deterioration of sight is through lack of
use of the accommodation muscles. While the lens does harden my sight
deteriorate most when sedentary and focussed onto a screen with a blank
wall behind. Since then I choose to sit where if I look over a monitor I
have a distant view.

Err, someone with perfect vision will only choose to have reading specs
when it becomes impossible to focus close enough without.

Err, there is no such thing as 'perfect vision'.

You are wrong, as always.

I'm sure many can read adequately without reading specs at all stages of
life.

Irrelevant to what is being discussed.

The only issue is they might not be able to focus at distance without
assistance.

The other obvious issue is with those who can
no longer read without some form of correction.

The worst killer for accommodation is varifocal lenses. The eye muscles
become very lazy.

Why would you get varifocals if you still could accommodate OK?

Well, that discounts just about everyone in their later stages of life:

More bull****.

https://en.wikipedia.org/wiki/Accomm...4_modified.svg