The role of color vision glasses is to enhance the patient’s perception of color contrast and increase the color sensitivity of patients with color deficiency, thus improving their quality of life. Color deficiency is a disorder of color vision, which is mainly manifested as a reduced ability to discern colors, i.e., patients with color deficiency can see colors but have a delayed or very poor ability to identify them. Most color weakness is caused by congenital heredity. Patients can wear color weakness glasses to improve their color discrimination ability and improve their quality of life, but there is no effective treatment. Color weakness can be divided into total color weakness, i.e., reduced ability to recognize all colors, and partial color weakness, i.e., reduced ability to recognize some colors but normal recognition of other colors, including red weakness, green weakness, blue-yellow weakness, etc. It is recommended that patients with color weakness should consult a hospital in time to assess their condition and under the guidance of a doctor for treatment.