sand-blind vs visually impaired

sand-blind and visually impaired both are adjectives.

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

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

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

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