Sensory Adaptations to Strabismus

Question 1

List the monocular cues for perceiving space?

Answer 1

Occlusion, parallax, size, perspective

Question 2

List the binocular cues for perceiving space?

Answer 2

Stereopsis that allows for fine depth perception

Question 3

In order to develop binocularity both eyes must…

Answer 3

Collaborate and have shared quality of vision.

Question 4

What are the consequences of faulty BSV in children?

Answer 4

Diplopia followed by suppression

Question 5

What are the consequences of faulty BSV in adults?

Answer 5

Diplopia and confusion

Question 6

What are the two types of visual confusion?

Answer 6

central and peripheral confusion

Question 7

Define physiological suppression?

Answer 7

This is normal suppression of extra-foveal areas to ensure the maintenance of normal binocular single vision

Question 8

Define scotomatous suppression?

Answer 8

This is suppression in which there is faulty bincular single vision, and the brain chooses to suppress one eye in favour of the constant confusion

Question 9

What are the 3 aspects of suppression?

Answer 9

Presence, area and density