near vision vs sight

near vision and sight both are nouns.

Word	Noun	Adjective	Verb	Adverb
near vision	Yes	No	No	No
sight	Yes	No	Yes	No

As nouns, sight is a hypernym of near vision; that is, sight is a word with a broader meaning than near vision:

Other hypernyms of near vision include vision, visual modality, visual sense.

near vision (noun)	sight (noun)
vision for objects 2 feet or closer to the viewer	the act of looking or seeing or observing
	the ability to see; the visual faculty
	an instance of visual perception
	the range of vision
	a range of mental vision
	a place of interest, especially to visitors
	anything that is seen
	(often followed by `of') a large number or amount or extent

near vision (verb)	sight (verb)
	catch sight of; to perceive with the eyes
	take aim by looking through the sights of a gun (or other device)