light reflex vs inborn reflex

light reflex and inborn reflex both are nouns.

Word	Noun	Adjective	Verb	Adverb
light reflex	Yes	No	No	No
inborn reflex	Yes	No	No	No

As nouns, inborn reflex is a hypernym of light reflex; that is, inborn reflex is a word with a broader meaning than light reflex:

light reflex: reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
inborn reflex: an automatic instinctive unlearned reaction to a stimulus

light reflex (noun)	inborn reflex (noun)
reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller	an automatic instinctive unlearned reaction to a stimulus