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HUMPHRISS DERYCK
Optometry and Vision Science: August 1982
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ABSTRACT

An experiment was designed that demonstrates that in a state of normal binocular vision a low plus sphere fogging the vision to 6/12 (20/40) produces an inhibition of the central foveal cones in the fogged eye. This inhibition is a natural process that can be switched on and off rapidly so that the fovea receiving the clearer image can examine it and hence produce maximum binocular acuity.

Received February 20, 1981; revision received November 19, 1981.

* Optometrist, Ph.D.

AUTHOR'S ADDRESS:

Deryck Humphriss

67 Bedford Avenue

Benoni

South Africa

© 1982 American Academy of Optometry