near-blind vs dim-sighted

near-blind and dim-sighted both are adjectives.

Word	Noun	Adjective	Verb	Adverb
near-blind	No	Yes	No	No
dim-sighted	No	Yes	No	No

As adjectives, near-blind and dim-sighted are synonyms defined as:

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

near-blind (adjective)	dim-sighted (adjective)
having greatly reduced vision	having greatly reduced vision