| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 2041.1 | Why ask us? Ask Lenscrafters. | SMURF::PBECK | Who put the bop in the hale-de-bop-de-bop? | Wed Mar 26 1997 16:10 | 17 |
| Did you read the paperwork that came with your glasses? Unless
they've changed policy, Lenscrafters has a very good return/exchange
policy - something like 30 days satisfaction guaranteed. I bought a
set of progressive lenses a bit over a year ago, tried 'em for a
week or two, and decided that the reading zone was too narrow
(didn't like swinging my head back and forth to read). So I brought
'em back and got a set of normal bifocals and a refund for the
difference in price (since the progressive lenses were more
expensive than the bifocals). Moreover, they let me keep the
rejected progressive lenses. (I actually replaced them in the frames
some months later for another tryout -- and decided I was right the
first time; back to the bifocals.)
What I don't know is how their policy works for frame replacement,
but if you're not satisfied, they will probably replace them.
Bottom line is --- don't ask us. Ask Lenscrafters.
|
| 2041.2 | Thanks .1 | RDDAWG::SOELLNER | | Thu Mar 27 1997 08:17 | 4 |
| Thanks for your comment. I'll see what happens this Saturday.
Regards,
Rich
|
| 2041.3 | | NPSS::HYLNDR::BADGER | Can DO! | Thu Mar 27 1997 12:06 | 19 |
| I bought my progressives at Merrimack eye care. They have a 30
satisfaction guarentee. I didn't like them at all.
So they gave me by-focals. I hated them. so now I have two pair of
glasses, one for reading, one for distance.
Note, two pair is what I wanted in the begining, but they convienced
me to try these other glasses. At each return, there was no hassel.
I did some research on the internet, it said 11% just can't use
progressives or bi-focals. 48% never are satisfied with their vision
after.
I believe with progressives they intentionally make the frames smaller
as they have to keep your eyes trained for the small area they have to
work in.
ed
[two pair forever!]
|
| 2041.4 | | SMURF::PBECK | Who put the bop in the hale-de-bop-de-bop? | Thu Mar 27 1997 18:37 | 16 |
| > I believe with progressives they intentionally make the frames smaller
> as they have to keep your eyes trained for the small area they have to
> work in.
I dunno .. for the progressives I got at Lenscrafters I picked out
the frames _first_, and then decided on the lenses.
At the time I was told that there were (at least through
Lenscrafters) two "profiles" available for the grinding pattern (of
the progressive focus areas on the lens), and I was convinced to try
the one they generally recommended for first-time users. They
actually weren't bad for general vision and occasional quick reading
(menu at restaurant, TV Guide, etc.) but no good at all for any kind
of extended reading (you'd want a neck brace after a while due to
all the head turning you were doing).
|
| 2041.5 | | NETCAD::MORRISON | Bob M. LKG2-A/R5 226-7570 | Wed Apr 02 1997 17:37 | 24 |
| The problem with progressive bifocals, which I use, is that the lateral
area within which the reading image is in focus is very narrow. In other words,
unlike monofocal lenses, you can't move your eyes back and forth and still
stay in focus. This situation is dictacted by the laws of optics; I won't go
into the details here.
The result is that when reading, you must continually move your head back
and forth a few degrees. Not good if you have any mobility problem in your
neck, or in situations (can't think of any off-hand) where your head is locked
into one position while reading.
Another side effect of this is that the horizontal alignment of the lenses
in the frame must be perfect, to within a few millimeters. Otherwise, when
one eye sees a focused image, the other won't. Or to put it another way, the
head position that puts one eye in focus is slightly different from the head
position that puts the other eye in focus.
This should not prevent you from getting frames that fit right. What they
do is grind the lenses to match the frames, so that when they are in the
chosen frames, the alignment is right. However, if you get different frames,
you may need to get new lenses, even if the lenses fit in the new frames,
because the spacing between lenses may be different, which would throw off
the alignment.
Another interesting tidbit: It would be impossible to make progressive
lenses without computers. Crafting the surfaces to correct for astigmatism
and to blend smoothly from distance prescription to reading prescription
is a very complicated design task.
|
| 2041.6 | | APACHE::KEITH | Dr. Deuce | Thu Apr 03 1997 08:48 | 12 |
| I did this the 4 years ago with my glasses too> After a week I returned
them and had straight lenses put into them. My last set have lined
bifocals and even those took a while to get use to. I swear that they
were giving me motion sickness for about a week.
As an asside, I also got contacts for the 1st time and the doctor
explained that some people leave one out (assuming no astig*) so that
they have mono-vision; one eye to see far and one eye to read. Sounds
like a hell of a headache to me. I have only tried it for a few minutes
when inserting them or removing them.
Steve
|