eye vs oculus

eye and oculus both are nouns.

Word	Noun	Adjective	Verb	Adverb
eye	Yes	No	Yes	No
oculus	Yes	No	No	No

As nouns, eye and oculus are synonyms defined as:

Other synonyms of eye include optic.

eye (noun)	oculus (noun)
a small hole or loop (as in a needle)	the organ of sight
the organ of sight
good discernment (either visually or as if visually)
attention to what is seen
an area that is approximately central within some larger region

eye (verb)	oculus (verb)
look at