try patient questions again

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neon - 06 Jun 2005 03:31 GMT

still trying to scope this group. loaded & read as far back as was
stored on my ISP.
thought patients welcome too.
wrote in a request for information, from a patient's perspective.
not one byte!
so am trying again.
to avoid potential attitude i am listing the questions
then
am following it up with the whole original message.
after this i'll just unsubscribe / go away. but isn't that what Usenet
is about?
best regards

________________________________________

How many focal lengths is the average multi supposed to deal with.
Three?
short, med & infinity?

Transitions are unique to each customer?

What are the average transition numbers? Three?

Can you have four?

Is four this normal in older viewers?

Does any company provide an x (glued?) on plastic/poly carbonate
bubble attachment / lens that turns a monocular lens (my computer
glasses) into bifocals?
_______________________________

Recently my vision has changed a lot. Now I'm watching a lot of dvds
on my computer. And I'm also having great difficulty focusing on the
text on the screen. Went to the "doc" to get fitted for "computer "
glasses.

I'm 59 & wearing multifocals I purchased 12 years ago. Eye exams,
taken as regularly as the Ontario government agency allows, always
recommended only a sight adjustment. The various "docs" said not to
bother.

Me (the uninitiated purchaser) & he ( the EXPERT) both failed to
recognize the need to shift the eyes between a written page/document,
the keyboard, and the screen. So I see the screen just fine but am
pushing the glasses down to see the keyboard. (Don't even add shifting
eyes to the blackboard (taking evening class.))

So off to see another doc & upgrade the multis.

1. How many focal lengths is the average multi supposed to deal with.
Three? short, med & infinity? And I guess the transitions are unique
to each customer? What ate the average transition numbers? Now I think
I need 4. Is this normal in older viewers?

2. Does any company provide an x (glued?) on plastic/poly carbonate
bubble attachment / lens that turns a monocular lens (my computer
glasses) into bifocals? And should cost about $50!
Or do I just get another pair!

thanks in advance
(off to see the new guy on tuesday)

Reply to this Message

Mike Tyner - 06 Jun 2005 05:47 GMT

> How many focal lengths is the average multi supposed to deal with.
> Three?
> short, med & infinity?

Trifocals have three distinct zones. Progressives have no distinct divisions
between one zone and another.

How many volume settings can you get from the volume knob on your radio?
Three? Four?

-MT

Reply to this Message

Dr Judy - 07 Jun 2005 04:15 GMT

> Recently my vision has changed a lot. Now I'm watching a lot of dvds
> on my computer. And I'm also having great difficulty focusing on the
[quoted text clipped - 18 lines]
> to each customer? What ate the average transition numbers? Now I think
> I need 4. Is this normal in older viewers?

The multi has a continuously changing focal length, see discussion about
limitations below

> 2. Does any company provide an x (glued?) on plastic/poly carbonate
> bubble attachment / lens that turns a monocular lens (my computer
> glasses) into bifocals? And should cost about $50!

No. But there are clip on, flip up (like dorky clip on sunglasses) lenses
available to clip onto bifocals so that the top part of the bifocal will
work with a computer.

> Or do I just get another pair!
>
> thanks in advance
> (off to see the new guy on tuesday)

Unless you position yourself and your monitor so that the monitor is below
your staight ahead line of sight, multi, tri and bifocals may not work with
the computer. The multi may be clear, but with a narrow range and the
tri/bi may require you to tip your head.

Single vision computer glasses work if your keyboard, monitor and written
material are all at roughly the same distance. You may need a copy stand
that attaches to the monitor to hold written material. It helps if you can
touch type and don't need to look at the keyboard.

I have often prescribed bifocals for computer users with the computer
monitor corrention in the top and the (closer) written material correction
in the bottom.

You will make it easier for the prescribing doctor if you measure the
distance from your eyes to the monitor, key board, written materials and
take those measurements along to the eye exam. If there are large (8-10 in)
differences between those measurements, check to see whether you can
rearrange your desk so that the various items are at more similar distances.

Good Luck.

Dr Judy

Reply to this Message

neon - 08 Jun 2005 05:09 GMT

thanks for the reply

>> Recently my vision has changed a lot. Now I'm watching a lot of dvds
>> on my computer. And I'm also having great difficulty focusing on the
[quoted text clipped - 21 lines]
>The multi has a continuously changing focal length, see discussion about
>limitations below

learning, a bit too late, as always
.
got the new specs.
doc2 said my oldies were just fine - within a 1/4 diopter ???
but I beat him up on the "glasses dance" (like the charmin bum dance)
at night school.
he said new developments (quality?) in lenses should help me at the
computer - transition, focus??
so he said try new general use (my term) glasses before i farted
around with the computer glasses (CG)
"maybe we should cut the lenses in 1/2 & leave the bottom bare:
sounded good to me.
or he'd give me a "waive" put a binocular (with a line (his words)) in
the new/old frames.
said he had similar same problem & walked around with his version of
the CGs - anything past 5/6' a bit blurry.

>> 2. Does any company provide an x (glued?) on plastic/poly carbonate
>> bubble attachment / lens that turns a monocular lens (my computer
[quoted text clipped - 3 lines]
>available to clip onto bifocals so that the top part of the bifocal will
>work with a computer.

pass on the "dorky"

>> Or do I just get another pair!
>>
[quoted text clipped - 5 lines]
>the computer. The multi may be clear, but with a narrow range and the
>tri/bi may require you to tip your head.

yeh - the new ones do too (dip).
guess the new doc oversold.
but i needed an updated image - so i'll discuss with him & press for
the best discount on the up/right graded CGs.
should i do the cut or bi?
i'm for the low cost cut., but am happy to get advice?

>Single vision computer glasses work if your keyboard, monitor and written
>material are all at roughly the same distance. You may need a copy stand
[quoted text clipped - 4 lines]
>monitor corrention in the top and the (closer) written material correction
>in the bottom.

this is the crux for me.
isn't there a cookie cutter for this problem!!
do i expect too much??
why didn't my doc understand the 2 focal lengths involved in computer
work!! screen / keyboard & close source input!!!!
a bozo, or there are no standards?

>You will make it easier for the prescribing doctor if you measure the
>distance from your eyes to the monitor, key board, written materials and
>take those measurements along to the eye exam. If there are large (8-10 in)
>differences between those measurements, check to see whether you can
>rearrange your desk so that the various items are at more similar distances.

he did that. had me sit at his desk & look at screen.
that's when he said cut out the bottoms.

but doc2 worked the problem. i was primed but i'd like to think he'd
have figured it out.

so i'll get proficient at the "bum dance".

malcolm

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