Colour vision deficiency and Congenital abnormality

Colour vision deficiency noun - Genetic inability to distinguish differences in hue.

Congenital abnormality and colour vision deficiency are semantically related. In some cases you can use "Congenital abnormality" instead a noun phrase "Colour vision deficiency".

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

Colour vision deficiency and congenital abnormality are semantically related. Sometimes you can replace phrase "Colour vision deficiency" with "Congenital abnormality", this phrases are similar.