Color Blindness and Testing in Children Essay -- Vision Sight Disorder

show Blindness and scrutiny in ChildrenIn a world of many technological advances, intensity perception has become a very important issue. One of the chief(prenominal) advances pertains to color technology. An increased emphasis on color technology has brocaded aw beness of the issue of color blindness. Many people be not aware of the origins of color blindness and the different types, although many people are affected by it. One in two hundred fe viriles impart this defect while in males the defect occurs in one and cardinal ( Lewis, Reitzammer & Amos, 1990). That is about two percent of the female and eight percent of male populations (Sewell, 1983). It is important to look at the prevalence of colorblindness in children and identify the problems associated with it.Color deficiencies can take many forms but are generally class together and known as colorblindness. The different types of color blindness embroil protanopia, deuteranopia, and tritanopia. Individuals with prota nopia perceive short-wavelength light as low-spirited, and when the wavelength is increased, the blue becomes little and less clear until it is perceived as gray at 492 nm (Goldstein, 1999). green-blindness causes a person to perceive blue at short wavelengths and overtake yellow at long wavelengths with a neutral point at 498 nm. The most rare form of color blindness is tritanopia. These individuals perceive blue at short wavelengths and perceive red at long wavelengths with a neutral point at 570 nm (Goldstein, 1999). Protanopia and deuteranopia are commonly referred to as red-green blindness. These forms of colorblindness are sex linked the gene amenable is on the X-chromosome, with the dominant gene passed by the mother. With the female (XX), the anomalous locus on one X chromosome... ... Psychology, 14, 196-218.Goldstein, B. E. (1999). Sensation & Perception, Fifth Edition. Pacific Grove, CA Brooks Cole Publishing.Knowlton, M., & Woo, I. (1989). Functional color vision def icits and performance of children on an educational task. Education of the Visually Handicapped, 20, 56-62.Lewis, B.A., Reitzammer, A., & Amos, J.F. (1990). color vision defects what teachers should know. Reading Improvement, 27, 31-33. Pease, P.L. & Allen J. (1988). A new test for color screening color vision co-occurrent validity and utility. American Journal of Optometry and Physiological optics, 65, 729-738.Sewell, J.H. (1983). Color counts too faculty member Therapy, 81, 329-37.Waggoner, T. L. (2000, February 6). New pediatric Color Vision Test for Three to hexad Year Old Pre-School Children. Online, Available. http//members.aol.com/nocolorvsn/color5.htm