The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse...

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The Eye

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Transcript of The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse...

Page 1: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

The Eye

Page 2: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

The EyeThe eye is an organ that

can detect light and convert sit into a electro-chemical impulse that is transferred to the brain.

Page 3: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

External structures of the EYE

Caruncle

Tear gland

Page 4: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

External structures of the EYE

• Tear gland:

Page 5: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

External structures of the EYE

• Tear gland: produces tears

Page 6: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

Anterior structures of the EYE

Page 7: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

Anterior structures of the EYE

• Sclera:

Page 8: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Sclera: white area

• Iris:

Anterior structures of the EYE

Page 9: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Sclera: white area

• Iris: colored area that constricts and dilates

• Pupil:

Anterior structures of the EYE

Page 10: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Sclera: white area

• Iris: colored area that constricts and dilates

• Pupil: hole in the iris

• Time of death

Anterior structures of the EYE

Page 11: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

Can you TOUCH your iris?

Page 12: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

?

Page 13: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Sclera: white area

• Iris: colored area that constricts and dilates

• Pupil: opening in the iris

• Cornea:

Anterior structures of the EYE

Page 14: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Sclera: white area

• Iris: colored area that constricts and dilates

• Pupil: opening in the iris

• Cornea: tough, clear layer that covers the front of the eye

Anterior structures of the EYE

Page 15: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

Anterior structures of the EYE

?

Page 16: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Aqueous humor: fluid between the cornea and lens

Anterior structures of the EYE

?

Page 17: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

?

Page 18: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Lens:

Anterior structures of the EYE

Page 19: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Lens: focuses the image

Anterior structures of the EYE

Page 20: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

?

?

Page 21: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Muscles and ligaments:

Anterior structures of the EYE

Page 22: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Muscles and ligaments: pull on lens to focus image

Anterior structures of the EYE

Page 23: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

Internal structures of the EYE

?

Page 24: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Vitreous humor:

Internal structures of the EYE

Page 25: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Vitreous humor: thick gel that fills the back of the eye

Internal structures of the EYE

Page 26: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Vitreous humor: thick gel that fills the back of the eye

Internal structures of the EYE

Page 27: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Vitreous humor: thick gel that fills the back of the eye

• What causes red eyes in a picture?

• Retina: inner-most layer made of nervous tissue

Internal structures of the EYE

Page 28: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Macula: “ the yellow spot’ , portion of the retina that contains highest concentration of cones, no rods

Macula

Page 29: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Macula: “ the yellow spot’ , portion of the retina that contains highest concentration of cones, no rods

• Fovea: Dimple

in the center of

Macula. High

Visual acuity here

Fovea

Page 30: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

?

Page 31: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Optic Nerve: Group of nerve cells that transfer visual information from the retina to the vision centers of the brain via electrical impulses.

Page 32: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Optic Nerve: Group of nerve cells that transfer visual information from the retina to the vision centers of the brain via electrical impulses.

• Blind spot: Our blind spot is caused by the absence of specialized photosensitive cells, or photoreceptors, in the part of the retina where the optic nerve exits the eye.

Page 33: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 34: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 35: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

The next few slides are just some optical illusions

Page 36: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 37: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 38: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 39: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 40: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 41: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 42: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 43: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 44: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 45: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 46: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 47: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.
Page 48: The Eye. The eye is an organ that can detect light and convert sit into a electro- chemical impulse that is transferred to the brain.

• Lenses

• Lens of the eye

• Inverted image

• 20/20


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