Presentation on theme: "Eye Color and Peripheral Vision By: Emily Bohlen Mr. Leingang’s 6 th per. Science."— Presentation transcript:
Eye Color and Peripheral Vision By: Emily Bohlen Mr. Leingang’s 6 th per. Science
H ypothesis: As I changed the eye color from brown, to blue, and to green then the person with the brown eyes will have better peripheral vision because people with darker eyes have bigger pupils.
Q uestion: How does eye color affect peripheral vision?
B ackground Information: Does eye color affect peripheral vision? Our central vision is not the only type of vision that we use everyday. We use our central vision to do a variety of things, like read or talk to our friends. A lot of activities that we take part in do not occur directly in front of us. Peripheral vision is when you see out of the corner of your eye. It is important to know our limits of peripheral vision, because we used it constantly throughout our daily routines. We use it while driving, playing sports, and we even use it to relax. The light-sensitive lining at the back of the eye, called the retina, is packed with cells called rods and cones. These cells receive light. Cones are sensitive to color and are mainly clustered in the center of the retina. Since there are few cones in the outer region of the retina, it is very difficult to distinguish the color of an object out of the corner of the eye. Rods are more evenly spread in the retina, but there are also very few towards the outer region of the retina. This makes it hard to determine the shape of an object out of the corner of the eye.
V ariables: Manipulated Variable: Color of eyes (Green, Blue, and Brown) Responding Variable: The person peripheral vision Controlled Variable: How far away the person is from the object Where the person is standing The shape of the objects The color of the objects
M aterials: Person with brown eyes Person with green eyes Person with blue eyes Yard Stick Ruler Pink star (about the size of a salad plate) Purple circle (about the size of a salad plate) Yellow triangle (about the size of a salad plate) Orange square ( about the size of a salad plate)
P rocedure: 1. Set up; see diagram. 2. Starting with the person with brown eyes, have them look at you and point to object #1 ask them to tell you what they see using their peripheral vision (shape and color). 3. Record what person sees. 4. Repeat steps 2-3 with object #2-4 (right to left). 5. Bring in person with blue eyes. Repeat steps Bring in person with green eyes. Repeat steps Mix up objects so all objects are in different places. 8. Repeat with brown eyes, blue eyes, and green eyes. 9. Repeat steps 7-8 for third trial and record what person sees.(shape and color) Objects: -Pink Star -Purple Circle -Yellow Triangle -Orange Square
A bstract: The purpose of this experiment is to determine whether eye color affects peripheral vision or not. It is very important to know this because our peripheral vision plays a very important role in our lives. Peripheral vision allows us to do so many things such as playing sports and drive. Some errors that I came across doing this experiment was that I should have made more objects with contrasting colors so the person eyes would not focus in on a certain group of colors there would be a variety. Completing this project I have learned that people with darker eyes have better peripheral vision. What I could of done differently was test the people in a more closed environment and not in a busy environment.
C onclusion: I thought that if I changed the color of the eye I am testing then the person with brown eyes would have better peripheral vision. My results showed that I was correct. I can prove this because the person with green eyes saw the color of the yellow triangle but not the shape, saw the color of the orange square but not the shape, saw the shape of the purple circle but not the color, and didn’t see the shape or color of the pink star. Now the person with the brown eyes had a different results she saw the shape of the triangle but not the color, saw the shape and the color of the orange square and the pink star, and saw the color of the purple circle but not the shape. So eight objects the person with brown eyes saw five and the person with green eyes saw three. Therefore if I change the color of the eyes that I am testing then the people with darker eyes or brown eyes will see the most telling us that they have better peripheral vision.
D ata T able: Brown EyesGreen EyesBlue Eyes ObjectsSaw color Saw ShapeSaw Color Saw Shape Yellow TriangleNo Yes NoYes Orange SquareYes Yes No Purple CircleYes NoNo YesNo Pink StarYes No Yes No