The Eye

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The Eye
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Cornea

• Transparent tissue covering the front of the eye.

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Pupil and Iris

• Hole in the center of the eye where light passes
  through.
• Circular band of muscles that control the size of
  the pupil.

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Lens

• A tissue that bends light passing through the eye
  focusing it on the retina.

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Cataracts
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Cataracts
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Vitreous Humor Sclera

• Jelly like fluid that gives the eye its shape.
• Coating around 5/6ths of the outside of the
  eyeball.

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Retina

• Back part of the eye that transfers light into
  electrical impulses.

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Glaucoma Test
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Glaucoma
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Rods Cones

• Receptors responsive to low light
• Black and white, sides of the eye
• Receptors responsive to bright light
• Colors, middle of the eye

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Macular Degeneration
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Optic Nerve

• Takes electrical impulse from the eye to the
  brain.

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Diabetic Retinopathy
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• All pictures from this slideshow were found on
• http//www.nei.nih.gov/
• http//www.stlukeseye.com/