Basic Eye Anatomy

PARTS OF THE EYE

CORNEA

The

CLEAR TISSUE
that covers the

FRONT

of the eye.

PUPIL

The pupil is the

OPENING

through which
light ENTERS

the eye.

PUPIL

IN BRIGHT LIGHT:

the pupil becomes SMALLER.

IN DIM LIGHT:

the pupil becomes LARGER.

IRIS

● The circular structure

that surrounds the pupil

● Regulates the size of the

pupil.

● Contains pigments that

give eyes their color

Open Ended

What color is your Iris?

RETINA

A LAYER of

cells that lines

the BACK of

the eye.

RETINA

The retina contains
about 130 million
cells called rods
and cones that
respond to light.

LENS

A FLEXIBLE
structure that

FOCUSES

light.

HOW LIGHT IS FOCUSED:

The lens of your eye functions something like the lens of a
camera, which focuses light on photographic film.

Because of the way in which the lens of the eye bends the
light rays,

the image it produces is upside down and reversed.

Labeling

Label the parts of the eye:

Drag labels to their correct position on the image

IRIS

PUPIL

Labeling

Label the parts of the eye:

Drag labels to their correct position on the image

CORNEA

OPTIC NERVE

RETINA

PUPIL

LENS

Reorder

What is the pathway of light through the eyes? Light travels:

• through the cornea

• through the pupil

• through the lens

• to the retina

• to rods and cones

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Categorize

Options (6)

Organize these options into the right categories

NEARSIGHTED

FARSIGHTED

NEARSIGHTED EYEBALL

FARSIGHTED EYEBALL

Multiple Choice

Which eye is in the darker room?

Multiple Choice

Which eye is in the brighter room?

VISION PROBLEMS

NIGHT BLINDNESS:

Inability to see well in dim light

Caused by poorly functioning rods.

Can be inherited or caused by a lack of Vitamin A.

Match

Match the VISION PROBLEM with it's EFFECT:

• Nearsightedness

• Farsightedness

• Astigmatism

• Color Blindness

• Night Blindness

Sees nearby objects clearly

Sees faraway objects clearly

Blurry or distorted vision

Inability to detect certain colors

Inability to see well in dim light

• Sees nearby objects clearly

• Sees faraway objects clearly

• Blurry or distorted vision

• Inability to detect certain colors

• Inability to see well in dim light

Match

Match the VISION PROBLEM with it's CAUSE:

• Nearsightedness

• Farsightedness

• Astigmatism

• Color Blindness

• Night Blindness

Elongated Eyeball

Shortened Eyeball

Uneven curvature in the cornea or lens

A deficiency in one or more set of cones

Poorly functioning rods

• Elongated Eyeball

• Shortened Eyeball

• Uneven curvature in the cornea or lens

• A deficiency in one or more set of cones

• Poorly functioning rods