Question about using laptops/notebook computers and progressive lens

I have a question on using laptop and notebook computers. Are computer
lens any good for laptops and notebook computers? Or is it better to
use the reading segment of the lens to look at the laptop screen?
Because I noted that laptop screens are normally placed nearer and
lower from the eyes than desktop monitors. So for those who only use
laptops, computer lens may not be necessary. Choosing a lens with
short corridor (very little mid-distance, but optimised for near and
far vision, such as Solamax, AO Compact, etc..) may be better?

 

It all depends on your personal distance from eyes to the screen, no matter
whether the screen is on a laptop or on a desk. It also depends on how long
you work at the computer because it is hard to stay hunched over the screen
(without sometimes leaning back) for long periods of time.

 

No.

Any lens you use interferes with the natural eye function, so it is not
a good thing to be used.

 

Ivan,

Even though laptop screens are usually lower, many people just have their
desktop monitors too high for someone with presbyopia. I guess the ergonomic
people who suggest having the monitor higher are too young. The top of my
19" desktop CRT is at eye level.

 

Choosing a lens with short corridor (very little mid-distance, but
optimised for

I am a little confused on your recommendation. Doesn't a normal corridor (as
opposed to short corridor) lens have better (larger) intermediate vision?
Wouldn't that be better for computer use than a short corridor lens?

 

Robert

What you're saying is that short corridor lens is better than normal
progressive lens. This confirms my thinking that most progressive lens
wearers use mosltly the reading and distant segments only.The
intermediate portion is seldom used. However, if one has to use a
computer, this is where the complication starts. The computer monitor
is best viewed at about 18 inches, which requires the use of the
intermediate (corridor) of the lens. So for those who cannot avoid
using a computer, a compromise has to be made.

1. Good reading Good distant Poor intermediate (cannot use computer)
2. Good reading Good intermediate Poor distant (computer lens)
3. Good intermediate Good distant Poor reading (cannot read)

What I am trying to find out is the best compromise. Item 1 seems to
be the least disadvantage and if I can get away with using the reading
segment to view my laptop screen then I can live with only one pair of
glasses. But again I not sure whether it will work out that way.

(I am not in any optical business nor related to any.)

BTW does anyone know the correct way to mark pupil distance (PD)
accurately? Please help me on this. I know that for progressive lens
it is quite critical. My optician places his finger 15 inches away
from my nose. I have to stare at his finger while he mark out two dots
(one for each eye) on the dummy lens set into my spectacle frame. The
lab will base on this marking to set the progressive lens into the
frame. I have read somewhere(unfortunately I don't remember from
where) that while marking the PD, one has to look at a more distant
object, or better still marking one eye at a time. If so how practical
it is, and how exactly it is done?

Ivan

 

It simply cannot be so complicated!
Your line of reasoning is wrong from the very base.
You need a paradigm shift.

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