The majority of chromophobia is a congenital X-chromosome linked recessive disorder and the patients are mostly male. A small number of acquired color vision abnormalities are seen in certain fundus diseases. Color weakness can be treated symptomatically with corrective lenses for color weakness, which can improve color discrimination to a certain extent, but it cannot be cured, so you should avoid choosing occupations that require high color discrimination. Color vision weakness is a visual phenomenon in which the ability to distinguish colors is weak. The clinical manifestations are: poor color discrimination, the ability to distinguish colors only when they are more saturated, or the ability to distinguish hue changes only when there is a large difference in wavelength. Red weakness and green weakness are more common, and blue weakness is rare. Red weakness has a poor ability to discriminate red; green weakness has a poor ability to discriminate green, and patients have difficulty recognizing, misreading, or failing to read a pseudochromatic chart when it is examined. The principle is: according to the principle of complementary color topography, special coating is applied on the lens to selectively allow the light of certain wavelengths to pass through, and by wearing color vision correction glasses, the colors that were not recognizable can be correctly recognized and the effect of color vision impairment can be corrected. Therefore, color vision patients can wear color vision correction glasses to improve their symptoms, but they cannot be cured.