Two Eyes are Better Than One
Materials:
Directions:
Explanation: Your eyes don't see things the same. They see the same thing but at a slightly different angle. Your brain takes both views and combines them into one 3-d image. This kind of vision is called stereoscopic vision. When you cover one eye, you no longer see with stereoscopic vision, instead you see things two-dimensional, like a photo. This makes it hard to judge distances. People who lose sight in one eye learn to cope, but it is harder.
Return to Science and Technology Page
Becky's Guiding Resource Centre Main Menu