Eye Activity

Question 1

Dorsal stream AKA

Ventral Stream AKA

Answer 1

Magnocellular

ParVocellular

Question 2

____ –> primary visual cortex

Answer 2

lateral geniculate nucleus.

Question 3

Parvocellular stream goes to…

Magnocelular stream goes to…

Answer 3

temporal lobe
parietal lobe (motion, depth, movement)

Question 4

At what distance does retinal disparity stop creating depth perception?

Answer 4

25 feet

Bonus: there’s also CONVERGENCE beyond that - a cue for depth perception.

Question 5

At 200 feet we still have …

Answer 5

Mononocular cues (PICTORIAL cues like shadow, interposition, relative size)

Question 6

Sympathetic pulls the pupillary dilator ….

Parasympathetic pulls the pupillary sphincter …

Answer 6

open

closed

Question 7

What’s the reaction time of the pupil? Wow

Answer 7

0.2s

Question 8

What nerve shuts the sphincter pupillae?

Answer 8

CN III

Question 9

True or false: Sympathetic stimulation originates in the hippocampus and actually has to swing out through the cervical vertebrae to swing around the fucking subclavian artery, before synapsing with the superior cervical ganglion then head to the actual pupillary dilator.

Answer 9

False.

It originates from the hypothalamus.

Question 10

Which is dominance in pupil control - emotion or light?

Answer 10

Emotion.

Question 11

What muscle facilitates blinking during the startle effect?

Answer 11

Ocularis oculi

Question 12

What muscle facilitates blinking during the startle effect?

Answer 12

Ocularis oculi

Question 13

What’s “angle closure” glaucoma?

Answer 13

The iris is obstructing the anterior chamber.

The angle refers to the iris and cornea. It’s laying close to the cornea, blocking it.

Question 14

Whaddya call a decrease in accomodation due to aging?

Answer 14

Presbiopia.