Causes of Colour Blindness

Color vision abnormality is usually a genetic (genetic) disease (you are born with it). Blinds of red / green and blue color are usually handed down from your parents. The gene responsible for this disease is on the X chromosome, which is why men are more affected than women. The inheritance process is explained in detail in the "Color inheritance inheritance" section.

The British 8% of the male population and 5% of the population are color blind and there are an estimated 250 million people with color blindness around the world. The majority of people with color blindness inherit their state from their mothers. Mothers are usually "carriers", not color vision abnormalities. Some people suffer from long-term diseases such as diabetes, multiple sclerosis, several liver diseases, and almost all ocular diseases. For details on how to obtain conditions, please click.

Depending on the defect, the effect of color vision abnormality is mild, moderate or severe. Even if you inherit color blindness, your condition will not change throughout your life - it will not get better or worse

The retina of the eye has two types of photosensitivity cells called bacilli and cones. Both are present in the retina. The retina is the layer that processes the image behind the eye. Paul works in the dark light state to help night vision, but the cone functions during the day and is in charge of identifying the color.

There are three kinds of pyramidal cells, each of which has different sensitivity to the wavelength of light. One cone perceives blue, the other green, and the third cone perceives red. When you look at the object, light comes into your eyes and stimulates the conical shape. Then your brain interprets the signals from the pyramidal cells so you can see the color of the object. As the red, green and blue cones work together, you can see the full color range. For example, simulating red and blue cones in some way will turn purple.

The exact physical cause of color vision abnormality is still under investigation, but color vision abnormality is thought to be caused by false cone, but sometimes due to failure from cone to brain.

Those with normal color vision have all three correctly functioning cones / paths, but if one or more cone types are defective, color blindness will occur. For example, if there is a problem with a red cone, colors including red are not clearly visible. Most color blind patients can not distinguish between several red and green shades

There are many causes of color vision abnormality. For most people with insufficient color sense, this condition is hereditary and inherited from mothers. The most common form of color vision abnormality such as aging process, medication therapy, etc. is red / green blindness, most patients with color blindness suffer from this disease. It is called red / green blind, but this does not mean that the patient is confused with red and green. In other words, it means mixing all the colors. For example, red and green blind people confuse blue with purple as they can not "see" purple and red elements. To see this effect, see the example of pencil case, purple, blue below.

There are many types of color blind with varying degrees of severity. People with color blindness can only see black and white, this is a universal myth. This may be true, but monochromaticity (also known as full-color blindness) is extremely rare, with an estimated 33,000 affected. This severe visual impairment only allows individuals to see in grayscale. The important element to keep in mind is that it is not too difficult for most of those with color vision distinction to distinguish different colors, which will explain the difference in brightness level between hue and similar color.