ablepharia vs congenital defect

ablepharia and congenital defect both are nouns.

Word	Noun	Adjective	Verb	Adverb
ablepharia	Yes	No	No	No
congenital defect	Yes	No	No	No

As nouns, congenital defect is a hypernym of ablepharia; that is, congenital defect is a word with a broader meaning than ablepharia:

Other hypernyms of ablepharia include birth defect, congenital abnormality, congenital anomaly, congenital disorder.

ablepharia (noun)	congenital defect (noun)
a congenital absence of eyelids (partial or complete)	a defect that is present at birth