A microscope (from the Ancient Greek: μικρός, mikrós, "small" and σκοπεῖν, skopeîn, "to look" or "see") is an instrument used to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is called microscopy. Microscopic means invisible to the eye unless aided by a microscope.
"For what a better, fitter, gift Could be
in this world's Aged Luciosity?
To help our Blindness so as to devize
a pair of new & Artificial eyes."
Henry Power, In Commendation of ye Microscope, 1661