My child - colorblind?

Your child draws people in green and the grass around the house - brown? What is this manifestation of the creative personality or blindness?

The number of color-blinds much more than you think. In the U.S. alone can not distinguish colors 8% of the male population. At the same time, women-color-blinds less than 1%. Most color blindness (the chromatic defect of vision) is inherited. In addition, the cause may be age-related changes, glaucoma, cataracts and taking certain medications.

Types of color blindness

* Violation of red receptors - the most common violation. At the same time people confuse shades of red and green colors.
* Dihromiya - the difficulty in distinguishing shades of blue and green.
* Deytanopiya - inability to distinguish the green part of the color spectrum.
* Complete absence of color vision. The eye distinguishes the only black, white and shades of gray. This disease is extremely rare.

Causes of blindness
In the retina has three types of cones. Each of them reacts to a specific color - red, blue or green. The defect causes a moderate cone color blindness. In the complete absence of pigment in the flask reached a certain color blindness in severe form.

Boys-colorblind person will inherit the disease from the mother, which, in turn, inherits the gene from his father's blindness. This defective gene, located on the X-chromosome, affects the quality of the color pigment in the eyes flask.

Women carrying the gene usually is normal, but her son's chance of blindness is 50 to 50. If she herself suffers from color blindness, her children are bound to be blind. The disease is rare in girls. The presence of disease in women meant that she has inherited the defective X chromosome from both parents.

Signs of blindness in a child
Child-colorblind person may:

* NO name colors (especially basic).
* Unusually paint a picture (for example, to depict a tree trunk in black, and grass - brown).
* Calling the object light pink or light green color with white.
* Seeing red and green objects equally (for example, confuse the orange and light green, dark green and bright red color).

Problems
Color blindness can not be cured. A child may be very upset because of his illness, but he was able to adapt to it. Here in what situations he may be faced with difficulties:

* Choose a color pencil or pen the right color
* Selecting the right color for clothing
* Reading color maps, charts and graphs
* Readiness Assessment meat, etc.
* Differentiation of traffic lights
* Careers in the field, which requires normal color vision (the pilot, policeman, fireman, designer, etc.)

Diagnosis
To diagnose color blindness using Ishihara color plates. The child shows a set of plates, each of which a figure, letter or symbol in a circle of dots. Symbols are read easily by people with normal vision, but color-blind does not see them. Using this type of diagnosis, the doctor determines the type of color blindness in a child.

Advice
Explain that blindness - not a vice, a unique feature.

Help your child:

* Did not correct the child when he calls the wrong color.
* Do not call the color in the description of objects (for example, ask your child to get a striped shirt or a velvet pillow).
* Gently Encourage your child to dress differently, if he made a mistake in the color scheme.
* Inform teachers about the characteristics of the child.
* Discuss with your child's future profession. Explain that some activities require the ability to distinguish colors.
Rx Ohio