Unlikely. The polarizing axis must be correct, Rx must be ground accurately,
accurate  optical center placement, good fit and finish, without excessive
minimum lens thickness (less than 2.6mm). I would strongly recommend that your
optician or doctor inspect the lenses. There aren't too many labs that output,
with any reasonable amount consistency, high quality lenses, let alone an
internet retail venturer.

Hope this helps

Robert Martellaro
~~~~~~~~~~~~~~~~~~
Optician/Owner
Roberts Optical
robopt@execpc.com
~~~~~~~~~~~~~~~~~~
"Science is a way of trying not to fool yourself."
 - Richard Feynman

Bill,

Here's one of the best explanations that I have seen concerning the theory and
practice of opthalmic polarizing films. From a discussion at optiboard written
by Darryl Meister.

"I'm sure that there are several good references on Polaroid films. Most
ophthalmic optics text, however, will only give you a general explanation. To
make a long story short... The film has molecules that are all aligned in the
same direction. This is often done by stretching a thin sheet of polyvinyl
alcohol, for instance (and then soaking it in iodine). These molecules have
electron bonds that are stronger in one orientation and weaker in another (and
all of them are now aligned). When light passes through the film, the electric
field component of the light is able to "do more work" on the electrons with the
weaker bonds. (Remember that light has energy.) As the light does work, its
energy is converted into heat. Consequently, the light is effectively absorbed.
This only occurs though, for light waves vibrating at the same orientation as
the aligned electrons."

"Waves of light reflected off diffuse surfaces or emitted from common light
sources, like the sun and light bulbs, vibrate at random orientations as they
travel away from their source. This light is non-polarized; some of the waves
will be vibrating through the horizontal plane, some through the vertical plane,
and some through oblique planes, in between the two. However, when light is
reflected off certain relatively smooth surfaces, such as pavement or water,
much of the reflected light is confined to the horizontal plane of vibration. At
a certain angle to these surfaces, known as Brewster's angle, the waves of light
are completely confined to the horizontal plane. This reflected light is
generally perceived as troublesome glare.

Now, since the glare reflected off of these surfaces is generally confined to
the horizontal plane, a filter that eliminates waves of light vibrating in the
horizontal plane will eliminate this glare. A sunglass lens, however, reduces
all light, including waves of light vibrating in the vertical plane. The only
way a sunglass lens can completely eliminate reflected glare, which is confined
to the horizontal plane, is for it to completely eliminate all light (not
terribly feasible). Fortunately, a Polaroid filter virtually eliminates waves of
light vibrating in one plane. (See the other post for a complete discussion of
how this is achieved.) Now, since polarized sunglasses are generally worn to
eliminate reflected glare, they are oriented to absorb waves of light vibrating
in the horizontal plane.

Because a basic Polaroid filter absorbs light vibrating in the horizontal plane,
some of the light is lost by necessity. After all, if it doesn't eliminate this
glare, it doesn't serve much use.  Since a filter that absorbs any light will
not appear perfectly clear, a basic Polaroid filter cannot appear clear, either.
The more light a filter absorbs, the more grey it will appear. Furthermore, all
waves of light, even those vibrating through oblique planes, can be resolved
into horizontal and vertical components (planes). (Like a prism at axis 45 can
be converted into horizontal and vertical prisms...) Consequently, half of all
light is vibrating through a horizontal plane, while the other half is vibrating
through a vertical plane. This means that a perfect Polaroid filter will
actually absorb 50% of the light passing through it (i.e., all of the horizontal
light). This also means that, while a Polaroid filter can be tinted to absorb
more than 50% of the incident light, it cannot absorb less than 50% and still
completely eliminate reflected glare."

http://www.visioncareproducts.com/05/lenses_polarized.html  briefly discusses
the manufacturing processes.

Regards,

Robert