Color blindness and Congenital defect

Color blindness noun - Genetic inability to distinguish differences in hue.

Congenital defect and color blindness are semantically related. In some cases you can use "Congenital defect" instead a noun phrase "Color blindness".

Congenital defect noun - A defect that is present at birth.

Color blindness and congenital defect are semantically related. Sometimes you can replace phrase "Color blindness" with "Congenital defect", this phrases are similar.