What's a "short corridor"?

  (*narrow* (vertical) corridor, I think I understand)

Looks like from what's being said here that there's
a wide (no pun) choice lens topologies (or whatever
the correct term might be) -- corridors, hour-glasse shapes,
etc, all vs size and shapes of the frames they're to fit
into.

A wee tutorial would sure be educational!

Thanks!

David

The Nikon i is probably a short corridor design- typically these designs have a
narrow (vertically and horizontally) distance zone. There are reasons to use
these designs, related to the Rx and viewing habits, as well a frame size.

Well, they should have said that this lens has performed well for folks with
your Rx and visual needs. Ask the optician why they chose this lens for you as
an individual. If they can justify the lens choice then try to adapt (it's the
brain not the eyes).

That said, if they're fit improperly it won't really matter what brand or design
is used, although some are more forgiving of inaccurate lens positioning than
others. While you're there, have them check the fit and Rx.

Hope this helps,

Robert Martellaro
~~~~~~~~~~~~~~~~~~
Optician/Owner
Roberts Optical
Wauwatosa, Wi.
~~~~~~~~~~~~~~~~~~
"Science is a way of trying not to fool yourself."
 - Richard Feynman

Earlier this week I picked up a new set of progressives following an
eye checkup that showed a small change in my Rx. I didn't need new
glasses, but I'm a bit of an eyeglass junkie and so I decided to treat
myself to another pair with trendy frames.

I went to my favorite optician and we discussed lens options. He said
that he had been having good success recently with a lens from Nikon
Canada called the Nikon i so I went for those. Webpage:
http://www.nikonlenswear.ca/en/lentilles/progressive.php#

Unlike my past couple of pairs (one Varilux Comfort and one AO Easy)
when I first tried my new glasses on in the store they immediately
didn't feel right. The suggestion was made that I wear my previous
glasses the rest of the day and try the new ones first thing next
morning upon awakening, which I agree is sound advice. I did that and
still not much joy. Intermediate and reading is fine but distance
vision is yucky. Lots of off-center non-correction and even watching TV
is difficult unless you are perpendicular to the screen. Walking
around, just doing everyday things, there is definitely swim that isn't
there with the other lenses in my other glasses.

Unfortunately these frames (Face A Face "Archi" :
http://www.faceaface-paris.com/home.php?lang=4&called=cat&srub=dcv&concept=ARCHI
&gl_id=26
) are plastic and therefore have less adjustability than many others.
I suspect the lens centers are set slightly too high but I can't see
how they can be tweaked without a remake. Maybe I'm wrong.

I believe the Nikon line is Canadian only but perhaps not -- or maybe
the same lenses are sold in the US under a different brand. Anyone have
experience with Nikon progressives to share?