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From: hlr@well.sf.ca.us (Howard Rheingold)
Newsgroups: sci.virtual-worlds
Subject: Re: HMD question: help with lazy eye?
Message-ID: <16127@well.sf.ca.us>
Date: 13 Feb 90 06:16:26 GMT
Organization: Galloway Research
Lines: 34
Approved: hitl@hardy.u.washington.edu
In-Reply-To: <16115@well.sf.ca.us>


In article <16115@well.sf.ca.us> you write:
>
>I have a lazy eye -- my right eye does not track my left eye when I
[lines deleted]
>I am extemely interested in working with virtual reality, and I would love
>to use a head mount display, except that my 3-D perception is terrible. 
>It would be wonderful if a HMD could help me with my eye problem,
>rather than my eye problem being a hinderance with a HMD.

Well I rather doubt its a "standard" feature, but one could be built.  I have
seen small gadgets for tracking eye postion, and in fact some very high end
HMDs use such a device in order to keep the high res portion of their display
centered on what the person is looking at (it was found that you don't need
to put the periferal porstion of the display into hi res which saves a lot
of cpu time).

Note that this might not work.  (giant caveot: I know very little about this
subject, I have been interested in HMDs for about 12 years, and have very bad
and uncorrectable vision myself, and my right eye is twice as bad as my left
so it doesn't track, period.  close up or far away, so i do knwo a little).
Anyway the point i was gettng to is that by providing the one eye with an
image which is out of place (i.e. the image the eye gets is actually what
would be seen 10 degrees to the left say), this might be very confusing
to the diretionality center in the brain.  There is a huge amount of
neral processing connected with eye movement and stabalization, inner
ear function, and so on.  So its not clear that doing as you propose would
work.  but it would be fun to check it out in any case.


-- 
apple!jrg	John R. Galloway, Jr.       contract programmer, San Jose, Ca

These are my views, NOT Apple's, I am a GUEST here, not an employee!!