Can color blindness be corrected?

Color blindness can be corrected through certain methods, but it cannot be eradicated because it is caused by genetic reasons and is a congenital disease. For example, red-green color blindness is relatively common, and the inability to distinguish red and green normally. The more common correction methods are acupressure and wearing color blindness glasses. If you want to completely eradicate it, current medical conditions cannot do it.

How to correct color blindness

1. Acupressure.

Acupressure on the "four whites" 2 cm below the center of the eyeball can improve eye function. When doing acupressure, press firmly with your index finger for 6 seconds while exhaling. You can do acupressure with your eyes open or closed. When acupressure is performed with eyes open, colors can be clearly judged. When acupressure is performed with eyes closed, color blindness correction can treat abnormal vision and pseudomyopia. If you suffer from strong color abnormalities, you should focus on pressing under your eyes. If you continue to perform this acupressure, your color vision abnormalities will gradually disappear. You may do acupressure once in the morning in front of the mirror. It is better for women to do acupressure after removing makeup at night.

2. Color blindness correction method with glasses.

Color blindness correction glasses are based on complementary color antagonism and have a special coating on the lenses to produce a cut-off wavelength effect, allowing long wavelengths to be transmitted and short wavelengths to be reflected. Wearing color blind glasses can make it possible for people who were previously unable to recognize color pictures to be recognized correctly. Achieve the effect of correcting color vision impairment. Color blindness correction lenses are divided into contact lens type and ordinary wide-frame bright pupil color blindness correction contact lenses. They have outstanding correction effects on red and green blindness and are the best performing color blindness correction contact lenses on the market. Color blindness correction According to the color blindness correction theory, resin color blindness lenses can correct color vision abnormalities.

Color blindness test

Color blindness and color weakness are mostly checked using subjective perception, usually under brighter natural light. Commonly used inspection methods are as follows.

1. False Same Color Picture

It is usually called a color blindness book, which uses dots of the same shade of hue but different colors to form numbers or graphics. People with color vision impairment have difficulty in identifying them and may make mistakes or be unable to read them. They can confirm what kind of color vision abnormality they have according to the color blindness table.

2. Color harness test

The method is to mix wool bundles of different colors and shades together and ask the subject to pick out the bundle of wool that has the same color as the standard bundle. This method is time-consuming and can only provide rough qualitative rather than quantitative results, making it unsuitable for large-scale screening inspections.

3. Color mixing tester

It can quantitatively record the amount of red and green light required to match in order to determine red-green color vision abnormality. This method is both qualitative and quantitative.