glasses vs eyeglasses

glasses and eyeglasses both are nouns.

Word	Noun	Adjective	Verb	Adverb
glasses	Yes	No	No	No
eyeglasses	Yes	No	No	No

As nouns, glasses and eyeglasses are synonyms defined as:

glasses and eyeglasses: (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision

Other synonyms of glasses include specs, spectacles.

glasses (noun)	eyeglasses (noun)
(plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision	(plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision