crossed eye vs cross-eye

crossed eye and cross-eye both are nouns.

Word	Noun	Adjective	Verb	Adverb
crossed eye	Yes	No	No	No
cross-eye	Yes	No	No	No

As nouns, crossed eye and cross-eye are synonyms defined as:

crossed eye and cross-eye: strabismus in which one or both eyes turn inward toward the nose

Other synonyms of crossed eye include convergent strabismus, esotropia.

crossed eye (noun)	cross-eye (noun)
strabismus in which one or both eyes turn inward toward the nose	strabismus in which one or both eyes turn inward toward the nose