हिंदी
CHANDIGARH
A person who is colour blind or colour deficient is unable to recognise or differentiate between specific colours, most often red, green, or blue. Red-green colour blindness is an x-linked recessive trait, meaning that the green that causes the colour vision deficit is passed from the carrier mother to her son on the x-chromosome that he receives from her. Men have one x and one y chromosome in their genetic makeup.
Why is male colour blindness more common than female? According to specialists, 0.8 percent of males and 0.5 percent of women are colorblind. Color blindness has a congenital condition as its main component.
This occurs as a result of women being immune to the Red-Green colour defect, which is the most common kind of colour deficiency. Women have two z chromosomes, and even if she receives an x chromosome that is defective, her second normal x chromosome aids in maintaining her ability to see colour normally. As a result, congenital colour deficits are more common in men.
“A woman will not experience faulty colour perception owing to its recessive nature, but one will be a prospective carrier of poor colour vision,” the expert continued. “A guy possessing X-chromosome bearing defective genes will present with defective colour vision despite its recessive nature.”
However, both men and women can have acquired colour blindness. One of the early signs is an abrupt change in colour perception. This can occur for a variety of causes, including the use of medications including sildenafil, ethambutol digoxin, and certain antimalarials, as well as illnesses of the optic nerve, diabetes, persistent alcoholism, and specific retinal conditions. Experts advised an immediate examination in these circumstances to identify any potentially dangerous deeper causes.
