Dads with color weakness may generally pass it on to their children if it is due to congenital factors. However, if the color weakness is caused by acquired factors, it is usually not passed on to the child.
The main cause of congenital color deficiency is recessive inheritance of the X-chromosome chain. When the father with color weakness, the body suffers from genetic genes in the X chromosome to the daughter, if the mother is normal there is no carrier, the daughter has a single X chromosome of the diseased gene, but generally do not suffer from the disease, mostly carriers, the son is normal.
Children of a father with achromatopsia and a mother who is also achromatopsic tend to be achromatopsic.
For color weakness caused by acquired factors, such as diabetes, cataracts, leukemia, usually will not be passed on to the child, there is no need to worry.
People with color weakness should protect their eyes and avoid eye trauma.