ophthalmology vs shortsightedness

ophthalmology and shortsightedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
ophthalmology	Yes	No	No	No
shortsightedness	Yes	No	No	No

ophthalmology (noun)	shortsightedness (noun)
the branch of medicine concerned with the eye and its diseases	a lack of prudence and care by someone in the management of resources
	(ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred