there are a variety of colors, shades and nuances in the world's eyes are ready to receive. However, some people do not have the ability to distinguish or confused, so what we call suffering from color blindness or color blindness, a chronic condition, usually hereditary, with which you can live without drawbacks.
Causes of blindness
The macula (central area of the retina) consists of cone-shaped cells that are sensitive to waves red green blue and or combinations of these colors. When one of these "cones" does not work well, the person can confuse colors, does not distinguish shades of a color or not receive one of the basic colors.
As explained above, this condition usually have a genetic origin, but may also be due to other factors such as age, side effects of medication, eye damage or vision problems (glaucoma, cataracts, diabetic retinopathy or macular degeneration).
Symptoms of color blindness
The most common symptom is colorblindness confuse green and red (which are perceived as the same color), followed confuse yellow with blue. Sometimes, though very exceptional, the person can see in black and white.
Colorblind people can lead fulfilling and active life, although some tasks they may be more difficult than others, such as whether the light is red or green, if a tomato or watermelon is ripe, choose a color paint to buy clothes or paint a wall, etc.
Color blindness treatment
If colorblindness is birth or inherited, you can not be solved, but, as an alternative treatment, you can train the person to replace the information conveyed by color by other signals, such as knowing that the light is green not for the color, but because the third light is what is on.
On the other hand, if the condition has been developed by one of the causes mentioned in principle has a solution if the origin, such as cataract surgery or glasses or contact lenses with crystals that counteract the brightness is.
Any suspicion, it is important to see a specialist in ophthalmology to detect the condition as soon as possible and re - educated to overcome the limitations and lead a normal and fulfilling life.