Ten million men in the U.S. cannot distinguish red from green. Yet the disorder only affects less than 600,000 American women. Why? The genes for red and green receptors sit near each other on the X-chromosome. Men only have one X-chromosome, which they inherit from their mother. Meanwhile, women have two, and a normal gene can often balance out a defective one.
Treatment
Despite knowing the cause of blindness, has no cure, but some treatments can make patients with lenses that enhance contrast between colors.
Prevention
Unfortunately, there is no way to prevent blindness.
Nenhum comentário:
Postar um comentário