LASEK vs eye surgery

LASEK and eye surgery both are nouns.

Word	Noun	Adjective	Verb	Adverb
LASEK	Yes	No	No	No
eye surgery	Yes	No	No	No

As nouns, eye surgery is a hypernym of LASEK; that is, eye surgery is a word with a broader meaning than LASEK:

LASEK: a refractive surgery procedure that reshapes the cornea, creating a hinged flap in the epithelial layer of the eye
eye surgery: any surgical procedure involving the eyes

Other hypernyms of LASEK include eye operation.

LASEK (noun)	eye surgery (noun)
a refractive surgery procedure that reshapes the cornea, creating a hinged flap in the epithelial layer of the eye	any surgical procedure involving the eyes