2.4 The Eye

Question 1

Myopia

Answer 1

Nearsightedness

Question 2

Hyperopia

Answer 2

Farsightedness

Question 3

What is Astigmatism?

Answer 3

a defect in the eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are prevented from meeting at a common focus

Question 4

What is importance of the fovea centralis?

Answer 4

The most cons appear here, making it the place for greatest visual activity

Question 5

Function of rods

Answer 5

Shades and dim lights

Question 6

Function of cones

Answer 6

Bright lights and colors

Question 7

3 types of cones

Answer 7

Red blue green

Question 8

What is accommodation

Answer 8

eye changes optical power to maintain a clear image

Question 9

What happens to cause an after image

Answer 9

Rods and cones are trying to adapt to the overstimulation

Question 10

What does the vitreous humor do?

Answer 10

Maintains the eye pressure

Question 11

What is the function of the cornea?

Answer 11

Protects the eye, begins to bend the light to make out an image

1st step in making an image

Question 12

What does the pupil do?

Answer 12

Allows light into the eye

Question 13

Aqueous humor

Answer 13

A clear fluid that give the cornea it’s rounded shape

Question 14

What is the iris?

Answer 14

A muscle that controls how much light enters through the pupil

Between the cornea and the lens

Question 15

What is the function of the lens?

Answer 15

Makes an image on the eyes retina

Question 16

What is the function of the retina?

Answer 16

Light sensitive cells at the back of the eye that detects images from the lens

Question 17

What is your blind spot?

Answer 17

The place where the optic nerve leaves the retina

Question 18

What is the tapetum?

Answer 18

The colorful shiny material behind the retina that reflects light back through the retina

Question 19

What is the sclera?

Answer 19

The thick tough white outer covering of the eyeball