This is what the Partial Color Blind Patients feel
Most of the sufferers color blind experience partial color blindness. Very few actually experience total color blindness. The characteristics of color blind people are to have different perceptions about color, and can not distinguish a particular color.
Color blindness is usually characterized by the difficulty of naming the color since childhood, in contrast to his age friends who can identify colors easily.
Recognizing Partial Color Blind Causes
Generally speaking, there are two types of color blindness, namely partial blindness and total or partial color blindness. Partial color blindness may have difficulty distinguishing part of the color. Then there is also total color blindness, often known as monochromatic vision, marked by not being able to see the color at all.
Partial color blind usually occurs due to inherited heredity from families with abnormalities in fotopigment, the molecule that detects color in conical cells in the retina.In addition to heredity, color blindness can also be caused by damage due to exposure to chemicals, or physical injury to:
- Eyes
- Visual nerve
- Parts of the brain that process color information
A mixture of age and cataracts, also contributes to a person experiencing color blindness.
Understanding Partial Color Blind Classification
In the classification, partial color blindness has two classes, the first is color blind or difficulty distinguishing colors on the red-green gradation, and the second is blue-yellow blind.
The red-green blind is caused by the absence or reduced function of red cones or green cones. Color blind of this type is divided into four kinds, namely:
- Deuteranopi
There are no green cone cells making this condition likely to see red to yellow-brown and green to be cream.
- Protanopia
No red conical cells make the red look black. While the color orange and green will look yellow. They are also difficult to distinguish between purple and blue.
- Protanomali
There is a malfunction of the red fotopigment so that the orange, red, and yellow colors look darker resembling the green. This mild condition is thought to be experienced by about one percent of men and not so influential on daily activities.
- Deuteranomali
People with deuteranomali see green and yellow become reddish and difficult to distinguish purple and blue. This harmless condition is caused by an abnormal blue fotopigment. Approximately five percent of men with color blindness suffer from this condition. Whereas, blue-yellow blindness is caused by the loss or malfunction of blue cone photo pigments (tritan). Color blind of this type is divided into two kinds, namely:
- Tritanomali
There is a disruption of the blue fotopigment function that makes this situation to see the blue look green, and it is difficult to distinguish yellow and red. This condition is very rarely experienced, either by men or women.
- Tritanopia
There is not enough blue cone cells causing the blue to be more green and yellow looking purple or light gray. This condition is also very rarely experienced, either by men or women.
Partial color blindness is incurable, since it is impossible to replace the conical cells of the retina. As long as it does not interfere with most of the daily activities, this condition does not require special treatment because it does not cause chronic health problems.
However, if partial or total color blindness is caused by the consumption of certain drugs or pre-existing health conditions, then this condition needs special treatment by the physician. Consult the problem of partial color vision blindness to the ophthalmologist, to get the right recommendations, to help adapt the daily activities.
