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Part 1

How we see

Emma Pittsley

on 19 April 2010

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Transcript of Part 1

Iris Lens The first type is an image where your eyes and brain make unconscious inferences Try this :) This image appears to move, but in reality does not The second type effects eyes and brain with excessive stimulation of a specific type (brightness, tilt, color, movement) There are three different types
of optical illusions: 3D Images The red and blue lenses filter the two projected images allowing only one image to enter each eye.
These images are of flowers, but they are perceived to be of women The polarized glasses allow only one of the images into each eye because each lens has a different polarization.
With this image, you could infer the person to be either an old woman, or a young lady Optical Illusions The Eye Part 1:
How we see The third type is an image of several smaller objects that together make up a whole new picture focuses light and helps you to see clearly. Lens transparent skin covering the outside of your eye Cornea Pupil opening in the center of the iris that can change in size Iris receives light and then converts them into signals Retina interprets the impulses it receives into images to the brain Optic Nerve transparent jelly that fills the back chamber of the eyeball Vitreous Humor colored part of eye that opens and closes the pupil Hold your hands in front of you, at 20–30 cm distance from you, at eye level.
Point your index fingers against each other, leaving about 2 cm distance between them.
Now look “through” your fingers, into the distance behind them.
By: Clare VanSteel and Emma Pittsley Sclera the white part
of the eye Did you know? Your eyes can process about 36,000 bits of information every hour.
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