Images of visual distortion

Is there a site with photos of, or program that simulates, the effect of
correcting particular levels of myopia, hyperopia and astigmatism when using
glasses?

TIA
Gary

 

Certainly, Gary, try:

http://www.preventmyopia.org/animation.html

Best,

Otis

++++++++

 

Also a good "picture" can be found at:

http://www.nearsightedness.org/

Otis

 

Dear Gary,

The intent of your question is not clear.

If you have normal 20/20 vision (refractive state from zero to +1
diopters),
then you can SIMULATE 3 diopters of myopia by simply wearing
a +3 diopter lens. That is the level of "blur" a -3 diopter myope will
see in the distance, as well as the approximate "blur" on his Snellen.

If you have a refractive state of zero (and 20/20) and wish to simulate
a refractive state of +6 diopters, then the APPROXIMATE method
would be to get a -6 diopter lens -- and wear it. If the person is
young, however, his accommodation enable him to see through
the +6 diopters.

To simulate astigmatism (assuming you have none), then
just get a cylender lens of -2 diotpters, and wear it.
If you have a trial-frame, you can rotate the lens through
an angle from zero to 180 degrees.

Hope this helps clarify these issues for you.

Best,

Otis

 

That's great. Can I add my reefer madness clips
to the bottom?

-Quick

 

The intent of your question is not clear.

To clarify, I was looking for examples of the effect when *viewing through
glasses when correcting* varying degrees of myopia, hyperopia and
astigmatism. I'm not wishing to simulate or see examples of it because I'm
unaware of the effects, I was just hoping to see the effects such as
minification and geometric distortion.

Regards
Gary