… When accommodation is stopped, the position at which parallel rays entering the eye from infinity form an image varies depending on the state of the eye, and can be divided as follows: (1) normal vision, where the image forms on the retina; (2) myopia, commonly known as nearsightedness, where the image forms in front of the retina; (3) hyperopia, where the image forms behind the retina; and (4) astigmatism, where the image does not form anywhere. … *Some of the terminology that mentions "myopia" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 調節を休めたとき,無限遠から眼に入ってくる平行光線が像を結ぶ位置は,眼の状態によって異なり,次のように分けられる。(1)正視 網膜に像を結ぶもの,(2)近視myopia∥near sighted eye 俗に近眼ともいう。網膜の前方に像を結ぶもの,(3)遠視hyperopia∥farsightedness 網膜の後方に像を結ぶもの,(4)乱視astigmatism どこにも像を結ばないもの。… ※「myopia」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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