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[photo-3d] Re: Accommodation Convergence Link

  • From: Abram Klooswyk <abram.klooswyk@xxxxxx>
  • Subject: [photo-3d] Re: Accommodation Convergence Link
  • Date: Sun, 15 Oct 2000 17:10:32 +0100
I have posted a figure at 
www.egroups.com/files/photo-3d/stereophysiology/ac-link.gif

from:
Ian P. Howard, Brian J. Rogers "Binocular Vision 
and Stereopsis" New York and Oxford 1995, page 398,

which shows the zone of clear single binocular vision. 
The figure was adapted from:
G.A. Fry (1939) "Further experiments on the accommodation- 
convergence relationship" Amer J of Optometry, vol 16, pp
325-334.

>From the figure you can read for example that with one diopter 
of accommodation (looking at one meter distance) convergence 
is possible from zero (infinity) to about 10 degrees (about 40 
cm or 15 inch distance, with 65 mm interpupillary). 
This might give an idea about the elasticity of the AC-link!
Compared to this bungy jumping is nothing...

Abram Klooswyk