Science students can apply for color blindness in mathematics, mechanics, theoretical physics and some liberal arts majors.

In the physical examination of the college entrance examination, it can be detected whether the candidates are weak or color blind. Students should have systematic physical examinations in ophthalmology, surgery, internal medicine, otolaryngology, stomatology, radiology, laboratory and other departments.

Monochrome recognition ability test (monochrome recognition ability): 1) The doctor chooses one of the four colors of wires or letters, numbers, geometric figures and signal lights for the subjects to recognize. Say the color name in 5 seconds; 2) The doctor names a color at will, so that the examinee can accurately find out the conductor, letter, number, geometric figure and signal light of the color from red, yellow, green, blue and purple conductors or letters, numbers, geometric figures and signal lights of red, yellow, green, blue and purple within 5 seconds. The above two methods are carried out alternately. Mark the recognizable color with ""symbol on the name and record it in the physical examination form (those who have normal ability to recognize the color pattern and color number can leave this option unchecked).

The majors that color blindness cannot admit are communication, food, light industry, refrigeration, textile and chemical fiber, radio technology, thermal processing (forging, casting and welding), steel rolling, precision instruments, science (except mathematics, mechanics and theoretical physics), agriculture and forestry, and artistic sculpture.