Color blindness is an inability to see or difficulty distinguishing certain colors. Accordingly, the patient can still see objects clearly, only the ability to perceive colors is limited. Some people may not see any color, but this is rare.

Some signs of color blindness:

The patient cannot distinguish certain colors. Other colors are still distinguishable.

At a mild level, colorblind people have difficulty distinguishing green-red, blue-yellow. The degree of severity does not distinguish the colors from each other.

More seriously, the person may not see any colors, only seeing things in shades of gray (achromatopsia is estimated worldwide, 1 in 30,000 people). have the above syndrome.

Using the wrong color when drawing.

Headache, eye pain when looking at color.

When you find yourself with the above signs, to grasp the situation, use the color blind test tool to grasp the situation before going to a specialized medical facility.


Color blindness is largely inherited, but doctors will have methods to support, advise, and plan treatment to help patients protect their eyes.

Although not life-threatening, color blindness makes work and life difficult for patients. Therefore, in order to prevent color blindness, each person needs to take the initiative to have regular health check-ups and medical examination and screening before marriage. For jobs with a lot of exposure to chemicals, it is necessary to wear protective gear to minimize head and eye injuries because it is easy to affect vision. Do not self-medicate without consulting your doctor. When having vision problems, it is necessary to visit a doctor immediately to have a timely treatment plan.

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