bad perscription and big frames

I just got a new pair of perscription sunglasses. I purchased the Ray
Ban Wayfarers, which are a quite large plastic frame. I noticed when I
put them on that everything was a little distorted, especially on the
sides. I felt taller and had weird depth perception, almost a
"fisheye" effect.

Is this a natural thing to happen with a really bad
perscription/astigmatism and large lenses? I can see find when I look
straight, everything just looks a little off on the sides. It isn't
such a big deal, but is there anyway to remedy this or should I just
adjust to it?

Thanks for everyones' help,
Alex

 

Dear Alex,

You might be over-prescribed for astigmatism.

Perhaps you could ask them to reduce the amount of
astigmatism, consistent with passing the 20/20 to 20/30 line.

Best,

Otis

 

I don't think that is it. I have glasses (smaller frame) with the same
perscription and those feel fine.
Regards,
Alex

 

I think that's probably it Mike.

Is it also possible that the optician "fit" the lens wrong. I remember
she put a little machine up to my face and looked through it, I assume
to take measurements. Could the focal point be off. I notice that
when i hold the glasses higher on my face, so my eyes look through the
bottom, I get less distortion.

 

I think you mean "high" prescription, not "bad" which would indicate
"wrong" Rx.

Anyway, a large wrap around frame requires you to look at an angle
different from the normal perpindicular angle, which changes your
"effective" Rx. Some labs can correct for that (and some docs can too),
but certainly not all are even aware of this problem. The Rx needs to
be adjusted for the degree of "wrap", or you need to select a more
"normal" frame.

w.stacy, o.d.

p.s. you may laugh at ol' otis' posts, but do not question them...

 

Dear Alex,

You have a lot on info to go on, but be sure that the base curve of the
lenses, both old and new, are matched because it will affect the image
that you percieve.

Dr. Tom

 

LOL.. I'm guessing some people in the states say it "perscription"..
we see it often and it is so funny.

Ann