Driving at night
On 14/02/2020 13:02, bert wrote:
In article , The Natural Philosopher
writes
On 13/02/2020 22:50, bert wrote:
In article , The Natural Philosopher
writes
On 13/02/2020 12:30, bert wrote:
In article , NY
writes
I've always wondered what eye surgeons do when they replace
cataracts* in both lenses? Do they set both eyes to a fixed
infinity* (and require* the person to wear glasses to read)
Yes
No.
Yes
No.
As someone else has confirmed, you can have whatever focal length you
want.
You can even get varifocal or accomodating lenses these days.
Within the context of the question that was put and the comments leading
up to it the answer is yes. If you choose to answer one part of question
out of the context of the original discussion then the outcome may be
different. The real matter was do they set both eyes the same focal
length and the answer is yes.
Weasel. That was not the question that was asked
"Do they set both eyes to a fixed infinity?"
The answer is of course no.
No one is stupid enoght to believe the question was 'do they set the
eyes the same?' Of course they do. Why would they not?
--
People believe certain stories because everyone important tells them,
and people tell those stories because everyone important believes them.
Indeed, when a conventional wisdom is at its fullest strength, ones
agreement with that conventional wisdom becomes almost a litmus test of
ones suitability to be taken seriously.
Paul Krugman
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