Driving at night

[Dave Plowman (News)]

Quite. Some advantage being born short sighted if you can't have perfect eyes from birth. As at least you will still be able to read in later life without correction. I'm so called long sighted, so need correction for distance at all times - and additional correction for reading.

I simply dunno. I wear contact lenses and did try one made to my reading presciption. But didn't like it, being used to having both eyes for everything before.

Because I have my distance vision corrected by contact lenses I obviously need reading specs at my advanced age. And less powerful ones for the computer. And even more powerful ones for soldering etc - or looking for PCB faults.

[polygonum_on_google]

My mother had cataracts in both eyes operated on - but done at least a few months apart. I am pretty sure they were set the same. She had ridiculously good distance vision for someone of 90 - despite some macular degeneration.

[Steve Walker]

Yes. My mother had cataracts removed from both eyes a couple of years ago. Both give excellent distance vision - indeed when going back for a check-up they described her as having "fighter pilot eyes."

SteveW

[The Natural Philosopher]

A friend had his set for working at a computer screen. Since that mostly is what he does. He wears glasses for driving.

[bert]

In article [e-mail]>, "Dave Plowman (News)" [e-mail]> writes

Err if you can't focus close enough you haven't got perfect vision.

Oh dear.

[bert]

In article <r20s2u$grt$ [e-mail], NY [e-mail] writes

Yes

[The Natural Philosopher]

No.

[Brian Reay]

I'm not sure what they do but those that I know who've had them done invariably seem to have greatly improved vision, certainly for distance. Some need 'reading' glasses but not all.

I have glasses for distance - I wear vari-focals, the lower part are plane lenses. I asked my optician about laser treatment. She said that, while I don't have any signs of cataracts (virtually) everyone will develop them at some point due to people living longer and, at my age, I might as well wait until I get new lenses for cataracts! Five years on I'm still cataract free.

[The Natural Philosopher]

The lenses you get will be fixed focus.

You can choose what that focal length will be.

[Dave Plowman (News)]

Total nonsense IMHO. Unless he never goes outdoors. And doesn't want to see the world around him clearly. Or even see well around the house.

[Dave Plowman (News)]

Err, no older person ever has, bert. But may well have had when younger.

You don't understand much about your own eyes, do you?

[Tim Streater]

Correct. I was offered distant or close-up replacement lenses. I chose distant so I can now drive without glasses if I feel like it. I'll still get new varifocals, I expect, as then you put them on and forget them.

[jon lopgel]

No reason why he cant wear glasses when not at the computer.

[bert]

Yes

[bert]

In article [e-mail]>, "Dave Plowman (News)" [e-mail]> writes

Well I've lived with them a long time so I Know them pretty well.

[The Natural Philosopher]

I have bifocals - 'intermediates' for workimng at te computer and long for distance driving etc.

The 'intermdiates' are good enough to read by and allow decent focus out to about 2 meters.

More than good enough for most 'round the house' stuff.

As usual Daves comments are more a function of his ignorance and bigotry than a reflection on the real world.

But that goes with being a LeftyCunt?

[The Natural Philosopher]

No.

As someone else has confirmed, you can have whatever focal length you want.

You can even get varifocal or accomodating lenses these days.

[The Natural Philosopher]

Apparently not.

[Tim Lamb]

:-)

From a point of technical ignorance, I'm with Bert. Sat at the desk, I am wearing corrective reading glasses. Glancing through the window, I can see trees on the horizon 1/2 mile away and all the bits in between. However, nothing is in sharp focus. The registration on a van parked 20m away is blurred but just about legible. If I take my glasses off, the computer screen is blurred but everything else snaps into sharp focus.

It remains my belief that adopting the bi-focals that Specsavers sold me

20 years ago would have caused endless dust/drizzle/condensation nuisance during work related activities and might also have led to a deterioration in distance vision.

[Dave Plowman (News)]

Of course not. You've increased the power of your eye lens by using reading specs, so they are no longer focused on the distance (infinity, in practice)

Exactly what you'd expect with good vision as a youngster, as you age.

Presumably those varifocals would have had no correction for distance at all? So up to the individual if they would be more convenient than using a reading etc aid as and when needed. And of course a shop will try and sell you what gives them the maximum profit.