Pg 54 of IAN. Objective: To identify how parts of the eye function.

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Presentation transcript:

Pg 54 of IAN

Objective: To identify how parts of the eye function.

RESEARCH: Seeing: You “ see ” because the retina of your eye responds to light. Messages concerning light are passed from the retina to the brain. Each part of the eye is involved in sending light to the retina. Lens: bends and focuses light on retina. Retina: Light that falls on it forms an image

Rods: On the retina. Sensitive to dim light. Detect motion. Cones: On the retina. Sensitive to bright light; sense color. Cones in different areas of the retina respond to different colors.

Tired cones: When you continually stare at an object, certain cones are continually exposed to a color. They become “ tired ” and cannot respond to that color again until they “ recover ”. After image: An image that you continue seeing after you stop looking at an object; often seen in colors different from the original colors. Complimentary color is seen.

Complimentary color: Color seen when the cones of one color are “ tired ”. Illusion: An unreal or misleading appearance or image. Depth perception: You use both eyes to figure out the position of things. Color blindness test on the next slide.