visually impaired vs near-blind

visually impaired and near-blind both are adjectives.

Word	Noun	Adjective	Verb	Adverb
visually impaired	No	Yes	No	No
near-blind	No	Yes	No	No

As adjectives, visually impaired and near-blind are synonyms defined as:

Other synonyms of visually impaired include dim-sighted, purblind, sand-blind, visually challenged.

visually impaired (adjective)	near-blind (adjective)
having greatly reduced vision	having greatly reduced vision