"Carl" <crothman@NOSPAMoptonline.net> wrote in
news:4880bfba$0$7357$607ed4bc@cv.net:

> They are actually a form of what is known as "progressive
> multifocals", or to some, "invisible bifocals". What they've done is
> eliminate the DISTANCE part (and thereby getting rid of the inherent
> problems associated with having that in the lens too) and made it just
> an INTERMEDIATE (ie. computer) lens combined with a NEAR (ie. reading)
> section at the bottom. By eliminating the distance part, this lens
> appears to avoid both the peripheral distortions associated often with
> progressive multifocals and the narrow midrange section associated
> with progressive multifocals as well. As well, the transition from
> intermediate to near seems more seamless.
>
>

Hmm...I'll have to check them out. The big computer screen (28" LCD that
rotates for text in portrait mode) I use 1.5 reading glasses as I'm 62 with
hardened corneas, but luckily equal in both eyes. For the little Nokia
N800 tablet's 4" screen, I swap to a 3.75 reading glasses so I can make the
tiny text on the 800 pixel wide screen big enough to read.

I think I'm going to 4.00 on the next pair. I'll have to find another
source as Walmart has backed off on high power reading glasses to 3.50. I
was just there today looking at them.

I do fine work on electronics with very fine soldering operations that take
a very close lens. I use an electronics worker's magnifier that cost me
plenty for that. It also protects the eyes from the lead smoke pouring out
of the joint and off the iron. I've been breathing lead fumes in this
business since I was 10. It partially explains why I'm crazy.