Thursday, April 24, 2008

Websites

http://www.toledo-bend.com/colorblind/aboutCB.html

http://www.essortment.com/all/colorblindness_rkes.html

Clinical Information


Color blindness can occur if the color sensitive receptors in your eyes have reduced amounts or pigments or if one of the receptor systems are absent. The receptors decode color taken in by the eye so if one of those things happen it would result in color blindness. Color blindness is most often passed on by the mother because it is located on the X chromosome.

Wednesday, April 23, 2008

Minor Frustrations and Dangers of Color Blindness


Traffic lights can be dangerous if you do not memorize the order of the lights. Caution lights can be the most dangerous. If you are color blind you may not be able to tell if it is red or yellow. A minor frustration is picking out clothes. You may not be able to tell what color you are getting. Another frustration is cooking. You might not be able to tell if fruit is ripe or not or even what fruit it is. Oranges can appear to be much more yellow then lemons. Also, you could not tell whether meat is done by checking if there is and red in the middle.

Prognosis of Color Blindness

The inhertied forms of color blindnes will change very little if at all during a persons life time. The other forms of color blindness which were not inherited may change gradually over time. It may become better or worse.

Symptoms of Color Blindness

The symptom of color blindness is the inability to distinguish colors of the spectrum or to not see colors at all. This is a long term symptom and can range from mild to severe.

Treatments of Color Blindness

The treatmeant for color blindness depends on the cause of the color blindness. There is no known cause for inherted color blindness. For retinal and optic nevre diseases there are medications to treat the color blindness. If a medication is causing the color blindness then you would stop taking the medication.

Causes of Color Blindness


A genetic defect is the most common cause of color blindness. The defective gene is carried on the X chromosome which is why it most commonly effects males. Another cause is the aging process. this is where the lens in the eye darkens, making it harder to see colors. Some other causes are retinal and optic nerve diseases, and some medications.

Tuesday, April 22, 2008

Introduction

Color blindness- an abnormal condition characterized by the inability to cleary distinguish different colors of the spectrum.
Color blindness can be mild to severe. It can range from not distinguishing different shades of the same color to not being able to see color at all. Color blindness usually occurs in 8%-12% of men and 0.5% of women.