Re: Which is your dominant eye?

[P3D John W Roberts <roberts@xxxxxxxxxxxxxxxxx>]

I'm sure some people have a dominant eye, especially if the vision in one
eye is much better than in the other one. But I'm extremely skeptical
of the idea that *everybody* has to have a dominant eye.

To me, it's like someone sending out a survey to find out which hand
people use to scratch their elbow. ("Without thinking about it, use your
hand to scratch your elbow. Now quick - which hand did you use?") My
answer to such a survey would be that it depends on which elbow itches!
[For those who haven't visualized the geometry yet - try to scratch your
right elbow with your right hand. :-)]

My two eyes are fairly closely matched, which I would assume is true of
a fair number of other people. My eye dominance is "software selectable" -
by thinking about it, I can deliberately concentrate my attention on the
view from one eye or the other. In the "finger in front of the face"
experiment described in previous posts, I can make the finger go nearly
transparent, or nearly opaque, just by thinking about it. I find it
extremely hard to believe that I'm the only person in the world who can
do that.

Again, I don't doubt that many people have a strongly dominant eye.
But I also think that there are a lot of people who don't have strong
dominance in one eye or the other, who can easily switch dominance as the
task at hand demands, and I consider efforts by this latter group of people
to determine which is their dominant eye to be rather pointless.

John R


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