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- From: crystal@glia.biostr.washington.edu (Crystal)
- Newsgroups: bionet.neuroscience
- Subject: Re: Vision problem and Virtual Reality
- Message-ID: <crystal.722283589@glia>
- Date: 20 Nov 92 18:19:49 GMT
- References: <19921119.134808.645@almaden.ibm.com>
- Sender: news@u.washington.edu (USENET News System)
- Organization: University of Washington
- Lines: 76
-
- In <19921119.134808.645@almaden.ibm.com> simonofb@wmavm7.VNET.IBM.COM writes:
-
- >My doctor tells me that I have a vision problem called stribismous
- >(sp ?) which inhibits my ability to see certain 3 dimensional
- >aspects of scenes. I don't really understand all of the nuances.
- >I have noticed that when I went to Disney World in Florida, there was
- >a 3D movie theater where you wore 3D glasses and supposedly were
- >able to see a 2D movie in 3d. All I saw was a VERY blurry image
- >that gave me a headache. I have 2 questions about this condition
- >which my doctor was not able to answer.
-
- >1) What exactly can I expect to perceive differently than others?
- >- 3D movies obviously that are rendered using the 3D glasses is
- > one I know about.
- >- What about virtual reality scenes where the 3D is generated by
- > rapidly flipping between the left and right eye images?
- >- What other problems should I expect?
-
- My x-husband suffers from strabismus (crossed-eyes) and his major
- complaint was depth-perception. He could not get into AFROTC due
- to his eyes because he would not be able to qualify for a pilot's
- license. Although he had an operation to correct the problem when
- he was three, his eyes still do not track perfectly and sometimes
- it is hard to tell if he is looking at you or not. Another result
- of the eye problem is physical clumsiness. (Which was fine, since
- I just *love* Chevy Chase and his prat-falls...;>) He also enjoys
- reading to the exclusion of nearly everything else, but suffers from
- frequent headaches. And no, he can not deal with 3-D, nor use binoculars
- or microscopes with any success.
-
- >2) supposedly this problem was caused by my eye doctor's placing
- >a patch on my lazy eye for too long a period of time. Does this
- >make sense? What did this do to me physically to cause
- >this problem?
-
- While amblyopia (lazy eye) can be a contributing factor to strabismus,
- the eye-patch idea has not been proven to be a cause of later
- strabismus. The constant straining of the eye muscles and trying
- to focus with two eyes that just do not track well to begin with is a
- more likely cause. Nearsightedness can also be factor with the same
- muscular straining, as well as not wearing your glasses or having poorly
- ground lenses.
-
- Genetics can also play a part in this. It is a recessive gene in both
- humans and Siamese cats (which is where my original fascination with
- this comes from). My X is now married to a woman who also suffers from
- hereditary strabismus. Her condition was treated non-surgically, but I
- forget the details now.
-
- One of their daughters was born with severe strabismus. (a 1:4 chance)
- Surgically corrected at age 3, but too late to avoid a learning
- disability. :< (Their newborn son is being watched like a hawk for the
- earliest signs of the disorder) Her post-operative treatment is an eye
- cream that contains cholinesterase (sp?), an inhibitor to acetylcholine
- in some post-synaptic neuron that somehow strengthens the eye muscles (or
- at least that was what she told me - this could be in error - please
- correct it)
-
- Anyway, a board-certified opthamologist would be your best bet for
- accurate diagnosis and information on possible ways to correct the
- condition (likely via creams and drops if you are not in "cosmetic"
- need for surgery, which if you were, it would have been diagnosed
- LONG before now.) The fact that your doctor didn't give you much info
- should tell you to seek a second opinion from a specialist, rather
- than a General Practitioner, which, from your post, I would guess he
- was.
-
-
- >Thanks
- >Robert Simonoff
- >simonofb@wmavm7.vnet.ibm.com
-
- You're welcome, and good luck! :>
-
- Crystal
- ;>
-