1. By Brianna Kearney and Juliet Ruhe
Color Blindness
By Brianna Kearney and Juliet Ruhe

2. Color Blindness
Color blindness is a sex linked disorder where one can’t see certain colors in the color spectrum. Also, a person can carry this disorder
As it is sex linked, it is more commonly found in males. 1 in 12 males (about 8% of the population) have it while only 1 in 100 females (less then 1%) are color blind

3. Common Types of Color Blindness
The most common types of color blindness are…
Red-Green (99% of people that are colorblind)
Blue-Yellow
Ones does not see the world in black and white, just with out Red/ Green or Blue/Yellow

4. Common Types of Color Blindness (Continued)
As you can see, the term color blindness is misleading. It infers that one sees the world in black, gray and white
The more accurate term would be COLOR VISION DEFICIENCY (CVD)

5. Red Green Color Blindness
Around the outline of the white boxes is normal vision
IF you were red green color blind you’d see the world like the box on the left

6. Yellow Blue Color Blindness
Again, Around the outline of the white boxes is normal vision
IF you were yellow blue color blind you’d see the world like the box on the left

7. Effects of a Person with Color Blindness
Color Blind people have to find ways to counter the effects of their condition
Example, driving would seem difficult because reading the stop light colors would be impossible for them
Though, they just learn the order: red is on top, yellow is in the middle, and green is on the bottom

8. Treatments? Unfortunately, there is no treatment for color blindness
Color Blindness is a lifelong illness
The left is a normal vision of the color wheel and the right is a color blind person’s lifelong vision of the color wheel

9. What is the Cure for Color Blindness?
No cure or procedure is known for fully countering color blindness
However, scientists have created contact lenses that help color blind people distinguish colors to an extent

10. The Ishihara Test
This test is used to determine if people are color blind
Try to make out the colored numbers in the different colored circles…

11. What Number is in the Circle?

12. What Number is in the Circle?

13. What Number is in the Circle?

14. What Number is in the Circle?

15. Answers: 1st Picture: #2 2nd Picture: #8 3rd Picture: #5
4th Picture: #10

16. Works Consulted
“Colorblind Home Page.” Color Vision Testing. N.p., n.d. Web. 28 Jan <
“Color Blindness.” Human Diseases and Conditions. Vol. 1. New York: Charles Scribner’s sons, Print.
“Color Vision Deficiency.” American Optic Association. N.p., n.d. Web. 28 Jan <
Graetzer, Hans G. “Color Blindness.” Magill’s Medical Guide. 4th ed. Vol. 1. Pasadena, California: Salem Press Inc., Print.
“What Causes Color Blindness?” The Merck Manual of Medical Information. Ed. Mark H Beers, MD. 2nd ed. Whitehouse, NJ: Merck Research Laboratories, Print.