Color Blind Glasses Color Blindness Corrective for Red Green Color Blind + Case

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Color: As the picture shows
I. Causes of color blindness
Color blindness is a congenital vision disorder. Color vision disorder has many types, the most common is red and green blindness. According to the theory of three primary colors, any color in the visible spectrum can be composed of red, green and blue three colors. If you can identify the three primary colors are normal, three of primary colors can not be identified are called panchromatic blindness. The ability to identify any one color lowers the color, mainly red and green weak. Red-green blindness is a very common situation. Because the patient has no normal color discrimination ability since childhood, so it is not easy to be found. Red-green blindness is one of the most common human companion hereditary diseases.
The company believes that red-green blindness depends on two pairs of genes on the X chromosome, the red blind gene and the green blind gene. Since the two pairs of genes are closely linked on the X chromosome, they are often expressed as a genetic symbol. The genetic method of red-green blindness is X-linked recessive inheritance. Men have only one X chromosome, so they can be blinded by only one color-blind gene. Women have two X chromosomes, and they need a pair of alleles that are pathogenic to show abnormalities. As a result, men with color blindness are far more likely than females. A normal woman with a color-blind male marriage, the fathers color-blindness gene can be transmitted with the X chromosome to their daughter, can not pass to the son. The daughter again transmits the color-blindness gene from her father to her son, a phenomenon known as cross genetics. Because red and green blind patients can not distinguish between red and green, it is not suitable for art, textile, printing and dyeing, chemical and other needs of color sensitive work. If workers are color-blind in transportation, they may not be able to distinguish between colour signals, which can lead to traffic accidents.
Classification of color blindness and its symptoms
Congenital color blindness is often referred to as colour-blind, which does not distinguish a variety of colors or colors in the natural light spectrum. and the color of the discriminating ability is called color, it and color-blind line is generally not easy to strictly distinguish, but the severity of different. Color blindness is also divided into panchromatic blindness and partial color blindness (red blindness, green blindness, blue-yellow blindness, etc.). Color include full color and partial color (red weak, green and weak, blue and yellow, etc.).
1. Panchromatic Blind
It belongs to complete cone-shaped cell dysfunction, and blindness is the opposite, the patient Yu Xi dark, photophobia, manifested as day-blindness. Colorful world in its eyes is a gray, as the view of black and white television, only the light and shade, and no color difference. and see red hair dark, blue light, in addition to poor eyesight, amblyopia, central dark point, swinging nystagmus and other symptoms. It is one of the most serious color impairment, and the patient is rare.
2, Red Blind
Also known as the first color blindness. The patient is mainly unable to distinguish between red and dark green, blue and violet red, and purple can not distinguish. Green is often regarded as yellow, purple as blue, green and blue blend white.
3, Green Blind
Also known as the second color-blindness, the patient can not distinguish between light green and dark red, purple and cyan blue, mauve and gray, the green as gray or dark black. An art training class has a good picture of children, always painted the sun green, crown, grass painted brown, he is green blind patients. The red blind and green blindness are commonly referred to as red and green blindness in clinic. We usually say color blindness refers to red and green blindness.
4, blue and yellow blind
Also known as the third color blindness. Patients with blue and yellow confusion, red, green can be distinguished, less rare.
5, Full color weak
Also called Red Green blue yellow weak. The color vision disorder is lower than the color blindness, without any abnormality, and no other complication of panchromatic blindness. When the color of the object is deep and distinct, it can be distinguished; Patients are also rare.
6. Partial color
There are red weak (first color), green weak (second color) and blue-yellow weak (third color), etc., among them red green weak more see, the patient to red, green feel poor, illumination bad, its color discrimination ability is near red green blindness, but the material color is deep, bright and illumination is good, its color discrimination ability is close to normal.
Color-blind (weak) patients are born without the right color discrimination ability, and think that others also and their own, so can not consciously sick, many color-blind patients with eye examination has no abnormalities found. When the red and green colors are especially obvious or single, the patients are often distinguished by their unique experience, so color blindness (weak) can only be judged by a special color examination. Color Examination Method General colored blind inspection mirror, color-blindness check light, false same color table (Color-blindness check table) and colored yarn bundle. In the recruitment, admission examination of the common use of false same-color table and color yarn beam to carry out colour inspection.
Studies show that color blindness can be inherited, usually more than women, the incidence of male in our country is about $number, female 0.5~1%, Japanese men are about $number, women 0.5%, European and American men 8%, women 0.4%. Patients in life have a lot of inconvenience, in choosing a lot of restrictions. Since the discovery of color blindness, it has always been considered an incurable disease. Now, in our country, the son of the company introduced the Phantom Color blindness treatment has made gratifying progress, to the vast number of patients brought the gospel.
III. Molecular mechanism of color blindness
Color blindness refers to the lack of discrimination in some or all colors. The human eye is able to distinguish the color is depends on the human eye the retina has three kinds of photoreceptor cells ―― cone cells, they are most sensitive to three kinds of wavelengths of light, respectively, red, green and blue light.
So when the gene that controls one of these cells is abnormal, so that the cone cell loses its normal sensation of the corresponding light stimulation function, the human eye will not be able to distinguish the partial color correctly. Color blindness can be divided into many different types, if the two primary colors cone cell abnormalities, then it will be completely indistinguishable color, see is a black and white world, called panchromatic blindness, this situation is relatively rare. Of course, the cone cells are especially sensitive to the light of a particular wavelength, and the light of other colors has a weaker feeling, so in theory, panchromatic blindness can still be seen in a faint color. When there is only one primary color cone cell abnormality, called monochromatic blindness. Usually appear in the red or green sensitive cone cell abnormalities, resulting in red-green blindness. The occurrence of color blindness is mainly related to heredity, but there are some cases caused by optic nerve and brain lesions.
BP color Blind Glasses
bp color-blind glasses can effectively improve the color perception of patients and improve the colour resolution. The brain can distinguish the effect of red and green color by analyzing the chromatic aberration of the objects seen in the two eyes.
At the same time, color-blind glasses also added luminosity, suitable for both the color-blindness and myopia of the crowd.
package:1*Color-blind Corrective glasses