Color blindness is on color vision deficiencies . The eye will not see colors as typically if there is a problem with the pigments in the color receptors . If one pigment is lost , then the eye will have trouble seeing certain colors . People with color blindness can trouble seeing red , green , blue , or a mixture of these colors . However, the condition of patients with total color blindness , there is no color that can be seen at all and it is extremely rare.
SYMPTOMS COLOR BLIND
People with color blindness may only be able to see some shades, while most people can see hundreds of colors. For example, there are people with color blindness can not distinguish between red and green, but could see the blue and yellow colors with ease. Some people do not even realize that he suffered a color blind until they are tested for color vision.
Types of Color Blind
Type of color blindness is the most common red-green color blindness. Men have a tendency to experience this type of color blindness is greater than women. People who experience this type of color blindness would be difficult to distinguish shades of red, yellow, to green. In some cases, there is also difficult to distinguish between red with black.
Type of color blindness is the most common are blue-yellow color blindness. Type of color blindness is associated with sex chromosomes. Men and women have the same opportunities to experience this type of color blindness. People who experience this type of color blindness has trouble distinguishing shades of blue to green. The yellow color may appear as gray or purple while green look bluish.
COLOR BLIND CAUSE
In many cases, color blindness is a genetic factor of the parents, but it could have a side effect of a medication or health problems that have been there before. If there is a color vision receptors are not functioning normally, the eye can not see the spectrum of colors completely.
Seeing colors across the light spectrum begins with the eye's ability to distinguish primary colors, such as red, blue, and green. There are several causes of a person experiencing color blindness, among which are:
- Disease. There are a number of diseases that can cause color blindness, such as Parkinson's disease, Alzheimer's disease, glaucoma, optic neuritis, leukemia, diabetes, chronic alcoholics, macular degeneration, and sickle cell anemia.
- Age. A person's ability to distinguish colors will slowly diminish with age. It is a natural thing in the aging process and does not need to worry excessively.
- Genetics. Most people with color blindness experienced since birth and genetic factors inherited from parents. People with color blindness as a result of genetic factors is much more common in men than in women.
- Chemical material. A person can experience color blindness if exposed to toxic chemicals such as in the workplace, such as carbon disulfide and fertilizer.
- The side effects of certain medications. Some medications can potentially cause color blindness, such as digoxin, pheytoin, chloroquine and sildenafil, also known as Viagra. If the interference caused by the treatment, usually the view will return to normal after stopping taking the drug.
DIAGNOSIS AND TREATMENT COLOR BLIND
Most cases of color blindness caused by genetic factors, but the ability to digest the color can also be affected by underlying eye conditions. There are several tests that can be done to diagnose color blindness, among which are:
Many people with color blindness learn to adapt and find ways to overcome the problem of distinguishing colors. Until now there is no cure or method to treat color blindness .
- Ishihara test. The most common tests used to diagnose color blind and can only diagnose the condition of blindness red / green. To diagnose color blindness of blue / yellow, other tests are needed.
- Test preparation. This test is done by arranging the color object in the composition of different color gradations and the patient will be asked to arrange objects according to color gradation seen.
Symptoms of color blindness can be reduced by using alternative medicine or treatment of underlying condition if colorblind suffered caused by certain medications or health problems that have been there before .
The learning experience of a child will be affected , which is why it's important to recognize the color-blind since the beginning . Children who are color blind will find difficulty in school if the teacher does not know about this problem . Moreover , this condition can also affect the selection of jobs that require accurate color recognition , such as machinists , air traffic guides , pilots and electricians .
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