special senses: vision (karius)

Question 1

if an object is far away the light rays have what

Answer 1

diverged far enough that only parallel light rays enter eye, doesn’t take much refraction to make parallel rays focus on retina

Question 2

if the object is nearby light rays are what

Answer 2

still diverging, takes more refraction to make the diverging rays focus on the retina

Question 3

where does the first bending of light occur

Answer 3

cornea (2/3 of the ability of the eye to bend light)

Question 4

where is the second spot where bending of light occurs

Answer 4

at the lens

Question 5

what does accommodation require

Answer 5

ciliary muscle
suspensory ligaments
lens itself