Robert wrote:
- quote -

I bought some (plastic) maybe 4 years ago. Worthless. Not enough UV in the
car to make them turn, and driving is what I really wanted them for. I should
have demanded my money back because nobody warmed me, but I didn't. I had
glass photogray lenses for a long time and was very happy with them.

Perhaps the plastic ones are better now.

--
Cheers,
Bev
------------------- Don't you just KNOW that there is more than one
Sierra Club member who is absolutely sure that the
dinosaurs died out because of something humans did?

"Mike Tyner" <mtyner[at]mindspring.com> wrote:

- quote -

Ah, they must have used it agressively, and at the threshhold.

<otisbrown[at]pa.net> wrote

- quote -

How do you know that?

- quote -

36 people wore excess minus for a year. None of them got more nearsighted
than their peers. Show us a larger, more valid study.

- quote -

Magical thinking.

- quote -

Emotional appeal.

- quote -

And Dr. Colgate has published his successes where?

- quote -

My kids avoided nearsightedness. I believe it was the totem I placed in our
front yard.

- quote -

Yes.. that nagging demand for efficacy...

- quote -

You didn't say anything about all those OD's who quit recommending plus..
That was my question...

-MT

Dear Mike,

Subject: Prevention -- under the person's control

- quote -


In fact, "prescribing" a minus lens (as part of the plus)
is what you attempted. The MINUS part of the prescription
PREVENTS recovery.

I have seen "over-prescription" where the person has
20/40 (DMV testing standard) vision. An he is
prescribed a -2.0 diopter lens. Call it an error,
call it "standard practice" -- but that person should
not be wearing a minus lens ALL THE TIME. (I have
yet to hear a OD suggest to the parent that the child
AVOID wearing the minus -- unless absolutly necessary.)

The agressive use of the plus is most likely have to
be under the "control" of the person himself. While
difficult, it beats wearing the minus. But then
it becomes clear that the person himself must
take the responsibilty to check his own eye chart --
and make certain that he passes all legal requirements
that apply to him.

In fact the "prescription" of a bi-focal for my sister's
kids was a valuable experience. That convinced her that
the plus was the "second opinion". It also convinced
the "kids" that they would have to take the responsibility
to use the plus strongly, as recommended by Dr. Colgate.

So they kept their vison clear -- while the minus lens
people (as per the Oakley-Young study) see THEIR vision
going down by -1/2 dipoter per year. THEY learned
from the "Young" study -- and you do not.

But I do agree that if I were in YOUR position -- I
could not "help" the public with this.
In fact that situation was clear from my
discussions with Dr. Raphaelson. The person
himself will have to make this decision -- before
it gets "out of hand".

Best,

Otis

+++++++++++++++++++++




Mike Tyner wrote:
- quote -

Gray, by definition, supresses all colors equally. Brown, or any other
color, does not. When you are sitting in bright sunlight and eating a
garden salad, you can see the greens and browns of the salad much
better through the grey lenses than brown.

Grey, by definition, supresses all colors equally. Brown, or any other
color, does not. So, if you are sitting in bright sunlight looking at
a gardan salad with grey lenses, it is easier to see the browns and
greens in the salad through grey lenses than brown ones.

re: the transition lenses - which is better - the gray or brown tint?
is there a difference?

Robert wrote:
- quote -

overcast day, but that's probably just what you want. Interestingly they
go darker on cold days than on hot days.
Arguably their biggest drawback is the time taken to fade from tinted to
clear when you come inside - but this is improving with every new
version released (every few years or so).

Dom

they work fine if you are in direct sunlight. they do not change tint
well behind windshields or windows since they filter out significant
quantities of UV light themselves and UV is what causes the change in
tint. I have several pairs.

Seriously-what is the experts opinion of Transition lenses?

R

Punning was fecund nature to Shakespeare.


"Robert" <rf1776[at]hhhhotmail.com> wrote in message
news:I4w0f.847$sE3.399[at]lakeread07...
- quote -