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Testing the Relationship Between Eye Color and Sight

Science fair project
by

Camilo Montoya Suarez

on 12 March 2016

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Transcript of Testing the Relationship Between Eye Color and Sight

Variables Identified
Independent variables:

Constants and control
Testing the Relationship Between Eye Color and Sight
Does eye color affect a person’s ability to identify colors in low, medium and intense light?
Does eye color affect our ability to see things? This experiment will explore this question by comparing how well people with light eye color and dark eye color can differentiate colors in a room with intense, medium and low light.
Why we chose this project?
We have noticed that people with light eye color are more sensitive to light and dark eyed people are more resistant. So we are curious about how human eye works.
Eye color
Intensity of light
Dependent variables:

Number of times identified the color correctly,depending upon intensity of light.
Hypothesis
Materials
Approximately 20 test subjects (5 with blue eyes, 5 with green eyes, 5 with brown eyes and 5 with hazel eyes)
1 medium-sized room
Blindfold
Colored construction paper
Tape
Notebook for recording results
Procedure

1.Gather test subjects with blue, green, brown, and hazel eyes. Your test subjects should be around the same age and should not wear contact lenses or glasses.

2.Select a variety of colors from a pack of construction paper, and tape the paper to a wall on the far side of a room.

3.Ensure that the room is dimly lit, but not completely dark, then a little more light, and then with too much light

4.Bring one test subject into the room blindfolded and stand them on the side of the room opposite the colored paper.

5.Once the door to the room is closed, remove the blindfold and ask the subject to immediately identify the colors from left to right. Make tests with low, medium and intense light.

6.Record their answers.

7.Repeat steps 4-6 with each of your test subjects.

8.Analyze your results. Calculate the percentage of colors named correctly by each test subject before and after waiting two minutes. For each eye color, what is the average percentage of colors named correctly at baseline and at two minutes? Do you observe any differences among groups? Which eye color has the most accurate results at baseline? At two minutes?












































































































































































If eye color affects sight then lighter eyes are more sensitive and people with light eyes will identify
fewer colors than
people with dark eyes.
Constants:
1 medium sized room
Blindfold
Colored construction paper
Tape
Notebook
Control group:
Subjects with brown eyes

Safety Concerns
Beware with the intensity of light, to don't damage someones vision.
Do not put the blindfold to tight

Graphs
Observations
February 27 2016
We made the experiment with blue and brown eyes. We noticed that blue eyed people could identify tonalities of color better, and brown eyed people had many incorrect answers on low light
March 3 2016
We made the experiment with green and hazel eyes. We noticed that green eyed people had more correct answers thana the rest on medium and low light, and hazel eyes had an average number of correct answers
Results Summarized
Low light
Green eyes got the highest number of correct answers
Medium light
Green eyes got the highest number of correct answers
Intense light
Blue eyes got the highest number of correct answers
Background Research
Newton first thought of how human perceive colors was that color was infused by pressure on the eye, but then he tested his hypothesis sticking a darning needle around the side of his eye he then said that light was composed of particles but now with quantum mechanics light is now thought to be a wave and a particle. He finally proved that colors transmit familiar sensations to the brain and we recognize them, but we only see the reflective colors.
Human eye is a very interesting topic the people are still discovering things about it like the new layer in the human eye. And when we find which is the weakest eye color people could make new and deeper investigations to know the reasons why eye color affects vision.
Conclusion
Our hypothesis was bad but not totally, because even thought light eye colors identify the colors correctly the intense light was hard for them and they were sensitive to it.
Colors transmit familiar sensations to the brain and we recognize them, but we only see the reflective colors. Maybe Green and blue eyes perceive better the reflective colors on low, medium and intense light.
Our only error was to include distance as a independent variable because what we wanted to find was which color identifies colors correctly and is more important light than distance.
When we find which eye color is the weakest to differentiate between colors and recommend a laser treatment to fix the ability to recognize the colors
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