Is color blindness unclear?

Color blindness maps

are mainly graphs or numbers formed by dots of the same hue or different colors, which can judge the patient's ability to distinguish colors. If the color blindness maps are not clear in a short period of time, but specific graphs or numbers can be identified after repeated consideration, it is generally not color blindness, and it can be considered as color weakness. In most cases, the resolution of color is relatively poor, but there are still photosensitive cells. If repeated identification can not observe the specific figures or numbers in the colorblind map, it is generally considered to be colorblind, indicating that the photosensitive cells in the patient completely disappear.