I SEE YOU...

If you were to accidentally scratch the outermost part of your eye, which part would you damage?

• The cornea

• The lens

• The retina

• The pupil

What do the lens and cornea have in common?

• They both send messages to the brain.

• They can both change shape.

• They both contain photoreceptive cells.

• They both bend light into a focused beam.

What would happen to your pupils if it's extremely bright outside?

• They would let a lot of light into your eyes

• They would expand and become very large

• They would contract and become very small

• They would close up completely

How are rods different from cones?

• Rods are sensitive to light, while cones can detect color.

• Cones are sensitive to light, while rods can detect color.

• Cones send images to the brain, while rods do not.

• Rods send images to the brain, while cones do not.

Which part of your eye is most like the film in a camera?

• The iris

• The retina

• The pupil

• The lens

What role does your brain play in the process of seeing?

• It puts blurry images into focus.

• It turns black-and-white images into color.

• It flips upside-down images rightside-up.

• It flips backwards images over so you see them the correct way.

What might happen if the lens of your eye became damaged?

• Your eyes wouldn't be able to focus properly.

• You wouldn't be able to see in color.

• You wouldn't be able to see at night.

• All the images you saw would be upside-down.

What is the best synonym for "photoreceptive?"

• Tissue-covered

• Camera-like

• Color-detecting

• Light-sensitive

Which structure is at the back of the human eye where light through the lens is focused?

• Cornea
• Pupil
• Retina
• Rod

 ________ are light-sensitive cells in the retina that show the colors black and white. 

• Cones
• Rods 
• Bars
• Corneas