Binocular and Stereoscopic Vision

Question 1

What is binocular vision?

Answer 1

When both eyes are focused on the same object but detect slightly different images.

Question 2

What does binocular vision allow?

Answer 2

Depth perception and three dimensional vision (stereoscopic vision).

Question 3

Human:

Eyes are at the front of the head.

Answer 3

• A wide stereoscopic visual field is produced (~140°).
• This gives greater perception of depth
• and distance,
• good for predators.

Question 4

Rabbit:

Eyes are at the side of the head.

Answer 4

• there is a narrow stereoscopic visual field (~25°),
• but there is good all round vision
• to detect predators.