myopia vs shortsightedness

myopia and shortsightedness both are nouns.

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

As nouns, myopia and shortsightedness are synonyms defined as:

myopia and shortsightedness: (ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred

Other synonyms of myopia include nearsightedness.

myopia (noun)	shortsightedness (noun)
(ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred	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