Color blindness, also known as dyschromia, is one of the eye diseases that causes patients to be able to see things around them but cannot distinguish their colors, so it will be difficult. at work and in daily life.https://colorblind-test.ioSigns of color blindnessIn each different patient, the symptoms of color blindness will be different, some people will have severe symptoms, and some people will have mild symptoms. However, they all have one thing in common: they can't clearly distinguish colors or experience confusion when identifying color types between:Utensils and objects in red or green colorUtensils, objects are green or blue.Can't recognize any of the colors.Children show signs of color blindness when:Often using the wrong color when drawingHaving trouble distinguishing colors or utensils with different colorsIn low light, it is difficult to distinguish colors.Have sensitivity to lightWith colorful pages that are often unreadable.Children often complain of headaches and eye pain when looking at red objects on a green background, and vice versa.Children are not interested in counting objects with different colors or do not want to color in different colors.An easy way to spot it early is to take an online color blind test. The application is easy to use and gives relatively accurate results.