Hyperopic astigmatism

…If both are myopic, it is called myopic compound astigmatism, and if both are hyperopic, it is called hyperopic compound astigmatism. Myopic single astigmatism and myopic compound astigmatism are collectively called myopic astigmatism, and hyperopic single astigmatism and hyperopic compound astigmatism are collectively called hyperopic astigmatism. (3) Mixed astigmatism: Astigmatism in which one of the main meridians is myopic and the other is hyperopic.

*Some of the terminology that refers to "hyperopic astigmatism" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…両方とも近視であれば近視性複乱視，遠視であれば遠視性複乱視という。近視性単乱視と近視性複乱視とを合わせて近視性乱視，遠視性単乱視と遠視性複乱視とを合わせて遠視性乱視ともいう。(3)雑性乱視(混合乱視)　主経線の一方が近視で他方が遠視である乱視。…

※「遠視性乱視」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