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特許 権利維持 Myopia (Ancient Greek: μυωπία, muōpia, from myein "to shut (like a mole - mys/mus in Greek)" – ops (gen. opos) "eye, look, sight"[1]) literally meaning "trying to see like a mole" (mys/mus), commonly known as near-sightedness (American English) and short-sightedness (British English), is a condition of the eye where the light that comes in does not directly focus on the retina but in front of it, causing the image that one sees when looking at a distant object to be out of focus, but in focus when looking at a close object.