eyewash vs eye-lotion

eyewash and eye-lotion both are nouns.

Word	Noun	Adjective	Verb	Adverb
eyewash	Yes	No	No	No
eye-lotion	Yes	No	No	No

As nouns, eyewash and eye-lotion are synonyms defined as:

eyewash and eye-lotion: lotion consisting of a solution used as a cleanser for the eyes

Other synonyms of eyewash include collyrium.

eyewash (noun)	eye-lotion (noun)
lotion consisting of a solution used as a cleanser for the eyes	lotion consisting of a solution used as a cleanser for the eyes