Do color blind people dream of black and white? & bull; hello healthy

When we hear "color blindness", the very first thing that comes to our minds often: is that people who are color blind can only see the world in black and white, just like watching old TV. Did you know that this assumption is not completely true?

There are many things you can learn about color blindness and there will be many questions that come to your mind when faced with this condition. However, some of the same questions still seem to arise on various occasions. This article is a summary of all these questions and will help you to satisfy your curiosity more quickly.

What is color blindness?

Color blindness is a condition that results from the absence of a special color-sensitive pigment in the eye cone cells (color receptors), a layer of nerves at the back of the eye that is responsible for converting light into nerve signals to be sent to the brain.

In fact, the term "color blindness" is not entirely correct, because even if a person has difficulty seeing some colors, he can still see other colors. A more appropriate medical term as a representation of this condition is color vision deficiency , aka color vision limitations.

So, what do they see?

Dr. Jay Neitz, professor of ophthalmology at the University of Washington, described that color blind people are able to see exactly what normal people see, but in the quality of the color is opaque and cloudy.

An individual with normal vision has three layers of color receptors (trichromatic) which allow the transmission of color signals to be clearer and more accurate, but blind people only have two layers of color receptors (dichromatic) due to a chromosomal abnormality that makes them unable to see the color spectrum as a whole. They tend to have difficulty seeing or distinguishing red, green, blue, or a mixture of the three colors. They may also have difficulty reading colorful text, depending on the type fonts and the background color.

The most common form of color blindness is green / red color blindness, but that doesn't mean they don't know which is red and which is green. Colorblind mixes all colors that have the basic element red or green. For example, someone who is green / red colorblind will find it difficult to distinguish between blue and purple, because they cannot 'see' the red color element from the purple color (purple is a mixture of blue and red).

What is the dream of a color blind person?

It all depends on exactly when they become colorblind. Humans dream about what they know and feel familiar with. Therefore, people who are color blind after birth can still "see" color, according to the book "Color Blindness: Causes and Effects" (2002). Of course, the colors they see in their dreams match the colors they see in the real world.

However, it is different from the case of total color blindness. People who are totally color blind from birth can only see the world (and dream) in shades of black, white, and gray, because they never know what colors look like, and therefore their brains have no memory of color. anything to create a colorful dream.

Can color blindness be cured?

The answer is, no.

Color blindness is shared by 300 million people worldwide, and affects men more often than women. However, to this day there is no known cure that can cure color blindness.

Most color vision problems are genetic and present at birth, although it is highly unlikely that color blindness will develop later in life due to a variety of external factors, such as aging, disease, eye or optic nerve injury, or the side effects of certain medications.

Much modern research is looking into the possibility of color gene injection to restore a person's vision to its maximum capacity, but these studies have not succeeded in finding a bright spot.

Can you treat color blindness?

A person who is color blind cannot accept the same perception of shades and hues of color, and therefore it is almost impossible to change the situation.

However, there are some lenses and other aids that claim to improve vision. Is it true?

Using color correction lenses means that you will be required to purchase two different colored contact lenses. This will cause a shift in the color spectrum you perceive; You will probably be able to see several other colors in one eye, but on the other hand you may feel the loss of other colors. Lenses like this might help a little bit, but many people report that their benefits are not very effective.