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The dazzle reflex: electrophysiological signals from ocular muscles reveal strong binocular summation effects | Semantic Scholar

Binocular summation improves performance to defocus-induced blur.

    Medicine

  • 2011

Both subjective and electrophysiological results show that binocular vision ameliorates the effect of defocus, and the increased binocular facilitation observed with retinal blur may be due to the activation of a larger population of neurons at close-to-threshold detection under binocular stimulation.

Binocular brightness: a suppression-summation trade off.

The results suggest a trade off between suppressive and summative mechanisms involving binocular cells that are spatially tuned, and the trade off is controlled in the vector-sum model by the angle between vectors, which reflects the total inhibition in spatially tuning, binocular channels.

Glare discomfort and pupil diameter.

The study indicates that the pupil diameter by itself cannot be used as an objective indicator of the degree of glare discomfort, as the more concentrated the source producing the illumination at the eye the greater the contraction of the pupil.