night vision vs twilight vision

night vision and twilight vision both are nouns.

Word	Noun	Adjective	Verb	Adverb
night vision	Yes	No	No	No
twilight vision	Yes	No	No	No

As nouns, night vision and twilight vision are synonyms defined as:

night vision and twilight vision: the ability to see in reduced illumination (as in moonlight)

Other synonyms of night vision include night-sight, scotopic vision.

night vision (noun)	twilight vision (noun)
the ability to see in reduced illumination (as in moonlight)	the ability to see in reduced illumination (as in moonlight)