Blue yellow weak

Those who have poor ability to distinguish colors are said to be weak, and it is generally not easy to strictly distinguish the boundary between color blindness, but only in different degrees. Color weakness includes full color weakness and partial color weakness (red, green, blue-yellow, etc.). Weak blue-yellow is also called third color blindness. The patients are confused with blue and yellow, and can distinguish between red and green, which is rare. Weak blue and yellow is a type of color blindness. Congenital color vision disorder is usually called color blindness. It cannot distinguish between various colors or a certain color in the natural spectrum. Those who have poor ability to distinguish colors are said to have weak colors. Those with weak colors can see the colors seen by normal people. However, the ability to recognize colors is slow or poor. When the light is dark, some are almost the same as color blindness or appear as color vision fatigue. It is generally not easy to strictly distinguish between color blindness, but the degree of severity is different. Congenital factors are more common in color blindness and color weakness.