Males are more sensitive to bright light, and can detect more subtle differences in light. (U.S. NEWS & WORLD REPORT. August 8, 1988. p 52)

The superior colliculus in the midbrain controls the muscles that direct the eyeball, and affects which images are permitted to fall on the retina and hence to be seen (e.g., a cuckolded spouse may fail to see what everyone else sees, because emotional belief in the partner’s faithfulness is so strong that the eyeballs are directed to look away from the incriminating behavior obvious to everyone else). (Pert, Candace, PhD. Molecules of Emotion. NY: Scribner, 1997. p 146-149)

Males have a form of tunnel vision, females have a wider peripheral vision (e.g. may find objects more easily in a refrigerator). (Pease, Barbara and Allan. Why Men Don’t Have a Clue and Women Always Need More Shoes. NY: Broadway Books, 2004. p 80)

Females tend to have sharper peripheral vision, and increased sensitivity to body postures and gestures. (Fisher, Helen, PhD. The First Sex. NY: Random House, 1999. p 30-35)

Women’s brains have a greater variety of cones in the retina and wider peripheral vision (e.g., up to almost 180 degrees). Men’s brains have tunnel vision for seeing clearly and accurately directly in front of them (a narrower field) and over greater distances almost like binoculars (e.g., have difficulty finding things in fridges, cupboards, and drawers). (Pease, Barbara and Allan. Why Men Don’t Listen and Women Can’t Read Maps. NY: Broadway Books, 1998. p 20-25)

For static acuity, males have been reported as having better vision. Females are found on the average to have both more exophoria (divergency) and more esophoria (convergence) than males. (Baker, Mary Anne, ed. Sex Differences in Human Performance. NY: John Wiley & Sons, 1987. p 11)

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