The causes of color weakness mainly include congenital causes and acquired causes.
1. Congenital causes: congenital color weakness is mostly X chromosome recessive inheritance, men will suffer from color weakness as long as the X chromosome carries the disease-causing gene, while women need both X chromosomes to carry the disease-causing gene before color weakness occurs, therefore, congenital color weakness is more common in men.
2. Acquired causes: retinopathy, optic neuropathy, and side effects of drugs such as chloroquine or toxic side effects of some chemical substances can impair the patient’s color vision, thus leading to acquired color weakness.
It is recommended that patients with color deficiency should consult a doctor in time to evaluate their condition and choose the appropriate treatment according to the doctor’s advice.