acute glaucoma vs glaucoma

acute glaucoma and glaucoma both are nouns.

Word	Noun	Adjective	Verb	Adverb
acute glaucoma	Yes	No	No	No
glaucoma	Yes	No	No	No

As nouns, glaucoma is a hypernym of acute glaucoma; that is, glaucoma is a word with a broader meaning than acute glaucoma:

acute glaucoma: glaucoma in which the iris blocks the outflow of aqueous humor
glaucoma: an eye disease that damages the optic nerve and impairs vision (sometimes progressing to blindness)

acute glaucoma (noun)	glaucoma (noun)
glaucoma in which the iris blocks the outflow of aqueous humor	an eye disease that damages the optic nerve and impairs vision (sometimes progressing to blindness)