Prism Glasses

by Chris
(Utah )

Q: Are Fresnel Prism glasses temporary?

I have been assigned with prism glasses because I have double vision laterally. Officially, it is divergence insufficiency dist 6°esophoria (3° inward) near 0.

I wasn't advised how long I have to wear these, or if it is all the time. I am presently wearing them all the time and have been for one month.

How does prism help train the eye to perform stereoscopic without the glasses? What is my ETA?

The obvious answer is to speak to my ophthalmologist, however no harm in gathering opinions. The consensus is that these are more or less permanent.

If I wear them for a week straight and then try to not wear them, my double vision is more prominent and then I need to put the glasses back on.

I'm scared that my eyes will simply become dependent on the glasses and it will increase in strength instead of decreasing. I want to rid double vision. Not just become dependent on glasses.


A: Hello Chris,

The esophoria is indeed a problem for your vision, and normally there are two options you have: one is surgical, and the other is the prism eyeglass.

Some cases are good for surgery. I don't know if you are one of these cases, but I know that the prism lenses are the easy and safe way to correct this problem.

Normally the esophoria is not 100% curable. You wear the prism lenses to compensate the problem, but these lenses are not a cure.

Sometimes even wearing the eyeglasses, after a while, the problem comes back, and this means you have to readjust the diopters, so wear a bigger prism diopter.

So I would say the glasses are permanent and I advice you to make a consultation once a year to make the proper adjustments.

For more information, please visit our website:

Prism Eyeglasses

Hope this helps,
Arpi

Prism Glasses

by Tom
(New York)

Q: I have a prescription for a number 4 prism. Can I have a number 4 prism etched into my glasses?


A: Hello Tom,

The prism from your prescription is working like a separate diopter from the rest of the prescription, but it will be imbedded in to your lens. T

he special characteristics of the prism (base and direction) are put in to the lens when the lens is made, so the prism comes with the lens, cannot be separate from the lens.

You have to order new lenses with your diopters and the prism, all together in one lens.

Related pages

Prism Eyeglasses


Hope this helps,
Arpi

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