The Human Eye : Main Characteristics of the Sight

The Human Sight is a complex sens

Its characteristics varies depending on the surrouding light, connected sens input...

The Purview (Field of View), when eyes are motionless :

• HOR : 90° (temple) + 45° (nose) = 135° (with only a 2° high resolution central cone)

• VER : 45° (up) + 70° (down) =  115°

• Binocular vision : 100°-120°

An eye can move 15° in all direction at 600°/s

The Purview , when head is motionless :

• HOR : 170°  for one eye (NB. 120° for very good HMD), 210° for both (~ 200°)

• VER : 145°

The Purview , when head moving (for one eye) :

An head can move at 800°/s

• HOR : 200° (temple) + 130° (nose) = 330°

• VER : 140° (up) + 170° (down) = 310°

Visual Acuity : between 30” to 2’ of angle

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