ophthalmic vein vs vena ophthalmica

ophthalmic vein and vena ophthalmica both are nouns.

Word	Noun	Adjective	Verb	Adverb
ophthalmic vein	Yes	No	No	No
vena ophthalmica	Yes	No	No	No

As nouns, ophthalmic vein and vena ophthalmica are synonyms defined as:

ophthalmic vein and vena ophthalmica: either of two veins that serve the eye; empties into the cavernous sinus

ophthalmic vein (noun)	vena ophthalmica (noun)
either of two veins that serve the eye; empties into the cavernous sinus	either of two veins that serve the eye; empties into the cavernous sinus