Depth perception and stereopsis

Question 1

What is retinal disparity?

Answer 1

When your left eye and your right eye view slightly different images. Disparate images fall on non-corresponding points

Question 2

What is retinal correspondence?

Answer 2

When every point on one retina has a corresponding point on the other retina

Question 3

What is Panum’s fusional area?

Answer 3

Panum’s fusional area is the region of binocular single vision. Outside Panum’s fusional area, physiological diplopia occurs. Using the haplopic method of determining the horopter, Panum’s area can be determined

Question 4

What is the horopter?

Answer 4

A line or surface containing all those points in space of which images fall on corresponding points of the retinas of the two eyes.

Question 5

What is bifoveal fixation?

Answer 5

Refers to the ability of the foveae of the two eyes to focus on the same object simultaneously,

Question 6

What symptoms occur when an image is not on the fovea but is close enough to still be in Panum’s fusional area?

Answer 6

They could over time experience discomfort and reduced stereopsis