Assertion: safety glass's lense | /r/CapableOf | correct presbyopia
Facets:
Source sentences:
text: It was not until 1604 that Johannes Kepler published the first correct explanation as to why convex and concave lenses could correct presbyopia and myopia.[b]
text: These early glasses had convex lenses that could correct both hyperopia (farsightedness), and the presbyopia that commonly develops as a symptom of aging.