THE EYE
HOW DO WE SEE?
 By a series of steps involving the structures of
the eye and the brain
WHAT IS THE NUMBER ON MOST IMPORTANT
THING WE NEED IN ORDER TO SEE?
 The brain
 Yes
 The Eye
 Sure, obvious
 How abou...
WHAT ARE THE PARTS OF THE EYE?
CORNEA
 Transparent front surface of the eye
 Protects the inside of the eye
 Acts as a windshield
IRIS
 Colored muscular structure that contracts and
expands to control the amount of light that
enters the eye.
 Surroun...
PUPIL
 A HOLE! That lets light in.
LENS
 Behind the pupil lens that perfects the image by
refracting the light
 What shape is it?
 Convex
RETINA
 Layer of cells along the inside lining of the eye
 Contains the Rod and Cone cells
 RODS – see dim or bright li...
MORE ABOUT CONES
OPTIC NERVE
 Sends an electrical impulse to the brain
transmitting the image to the brain.
 Brian turns it right side up...
BLIND SPOT
 We all have one!
 There are no rod or cone cells where the optic
nerve connects to the retina. This causes u...
HOW WOULD I CORRECT MY VISION
 Use a variety of concave and convex lenses called
glasses or contacts.
NOW THAT WE KNOW WHAT PARTS
THERE ARE….
 Let’s find out where they are in the eye!
Anatomy of the eye
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Anatomy of the eye

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Anatomy of the eye

  1. 1. THE EYE
  2. 2. HOW DO WE SEE?  By a series of steps involving the structures of the eye and the brain
  3. 3. WHAT IS THE NUMBER ON MOST IMPORTANT THING WE NEED IN ORDER TO SEE?  The brain  Yes  The Eye  Sure, obvious  How about LIGHT!  That’s kind of important  Without light there would be no sight!!!
  4. 4. WHAT ARE THE PARTS OF THE EYE?
  5. 5. CORNEA  Transparent front surface of the eye  Protects the inside of the eye  Acts as a windshield
  6. 6. IRIS  Colored muscular structure that contracts and expands to control the amount of light that enters the eye.  Surround the pupil.
  7. 7. PUPIL  A HOLE! That lets light in.
  8. 8. LENS  Behind the pupil lens that perfects the image by refracting the light  What shape is it?  Convex
  9. 9. RETINA  Layer of cells along the inside lining of the eye  Contains the Rod and Cone cells  RODS – see dim or bright light, only black and white  CONES – see color in three different bands
  10. 10. MORE ABOUT CONES
  11. 11. OPTIC NERVE  Sends an electrical impulse to the brain transmitting the image to the brain.  Brian turns it right side up and recognizes the image.
  12. 12. BLIND SPOT  We all have one!  There are no rod or cone cells where the optic nerve connects to the retina. This causes us to have a spot in each eye where we cannot take information or ‘See.’
  13. 13. HOW WOULD I CORRECT MY VISION  Use a variety of concave and convex lenses called glasses or contacts.
  14. 14. NOW THAT WE KNOW WHAT PARTS THERE ARE….  Let’s find out where they are in the eye!
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