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Doctors use prism to correct for either vertical or horizontal misalignments in a person’s eye position.
The normal result of this is that the patient starts with double vision (Diplopia), the doctor then
induces prism into the prescription, and hopefully after the end result is done, the person
sees one image again. |
Doctors test for the need for vertical and horizontal prism using a Worth Four Dot Flashlight
with a special pair of eyeglasses with one lens red and one lens green. |
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Most people who are making eyeglasses are always following the instructions of the worksheet
that is in front of them. Lab techs are not licensed opticians in most cases. When a person enters
measurements for a client with prisms, it is more common than not that after the lenses are cut,
they are in the wrong spot consistently over and over again, which is Einstein’s Theory of Insanity. What actually happens is that all these high tech layout machines for cutting eyeglass lenses
are done on photography. When you put an eyeglass lens into this unit, the prism displaces the
fitting cross on the other side of the eyeglass lens. What really has to happen here is that they
eyeglass lenses have to be placed onto the tracer into a compensated place to end up with
the lenses aligning properly. |
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Also very common is that people with large astigmatisms with oblique axes, generally will get
their lenses back from the laboratory twisted due to the same kind of phenomenon that happens.
We recognize these problems at the Vision Fore Golfing laboratory and we will compensate
for this so that your eyeglasses do turn out accurate. |
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While correcting for vertical or horizontal misalignments is a challenge when manufacturing
eyeglasses, golfers who may have stopped playing because of double vision can now
get back on the course with our custom made Vision Fore Golfing Eyeglasses. |
