Hi ng,
I read a lot of articles and postings regarding the dynamic range (or
lightness range) the human eye can deal with, but I´m not quite sure
if I got things right. So maybe someone can help me answer some

here's something I was wondering about.  At the local drugstores, you
can easily buy different strengths of glasses for farsightedness (+.75
up to +3). They cost about $20 (at the most). Granted, these are for a
large number of the presbyopic population. But, why can't the same be

I have been wearing soft contact lenses for years and I'm happy with them.  
Recently my eyesight has changed some, and the dr. wants to give me much
stronger minus correction to make my distance vision clearer, and since I'm
45 now and just beginning to start having trouble ...

Hello, how much does is cost for a patient to be treated with Xalatan during
one year ? around $300 maybe ?
thanks.

Can anybody throw any light on this one?
I thought that modern glasses were corrected for prism effects but I
have noticed that I am getting quite noticable amounts of what seems to
be lateral chromatic abberration in opposite directions when I move my

his Web site was designed to provide education about the growing range
of procedures used to correct your vision, from cataracts to the
latest innovations in micro lens implants such as the Verisyse™ Phakic
IOL. There are now vision procedures available that may offer you a

I think I recall that photos on some newsgroups are not allowed.
I was wondering if one were added as an attachment to a posting if it
would be ok?
I recently acquired a retina camera and occasionally see something I'd

Target optical is running a "Profile Ovation Progressive Package"
special that provides no line progressive lenses and $99 off any pair
of frames for $199.  In other words if the frames cost $130 then the
total will be $229.

I'm about to get new glasses. My sph is -10.25/-10.5. I'm pretty happy
with my current lenses (Seiko? 1.67?), but it's time for new ones as
the frames are beat and the AR coating is coming off around the edges.
What's the current state of the art in high-index lenses? The Hoya?

Is it possible to sleep in GPs as one sleeps in Focus NDs?
How often does one need to clean extended wear GPs?

Here's my new Rx. Would be interested in recommendations for PALs:
O.D.:
  Spherical:  -6.00
  Cylindrical:  +0.25

I saw a 4 year old today who was referred from a vision screening for
his first eye exam.
Unaided VA was R 20/30    L 20/70
I  'scoped him at  R +.25 -.75 x 80 and   L +1.00 - 2.25 x 150, which

Emmetropisation via axial elongation or shortening driven by ciliary
muscle tone seems to make sense to me.
In such a model a particular longevity of contraction of the ciliary
would trigger some enzyme to create axial elongation to reduce this

As I mentioned in another post, I had bilateral cataract surgeries in
January, 1 week apart, and had the Tecnis Prolate Silicone lenses put in
by David Chang, M.D. of Los Altos.  I thought I'd give a little summary
here of my experiences.

Its very simple to show that our eyes move independantly of the other
eye to create our best vision.
Do this exercise:
Close the left eye and hold up a pencil to the right of straight ahead