乱視(らんし)

らんし
noun
astigmatism
1. astigmatism
A vision condition caused by an irregularly curved cornea or lens, resulting in blurred or distorted vision at all distances.
乱視(らんし)があるので、コンタクトレンズは特注(とくちゅう)が必要(ひつよう)だ。
Because I have astigmatism, I need custom-made contact lenses.
乱視(らんし)を矯正(きょうせい)するメガネをかけている。
I wear glasses that correct my astigmatism.
検眼(けんがん)で乱視(らんし)の度合(どあ)いを調(しら)べた。
The eye exam measured the degree of my astigmatism.

USAGE: 乱視(らんし) literally means "disordered vision." It can occur along with nearsightedness or farsightedness.

COMMON COLLOCATIONS:

OTHER VISION CONDITIONS:

TREATMENT: 乱視(らんし) is typically corrected with glasses (眼鏡(めがね)), toric contact lenses, or refractive surgery (屈折矯正手術(くっせつきょうせいしゅじゅつ)).

Related Words

Related: 老眼(ろうがん) (presbyopia)
Related: 近視(きんし) (nearsightedness (myopia))
Related: 遠視(えんし) (farsightedness (hyperopia))
general
Added 2026.1.17 20:32 · Revised 2026.7.2 18:21
06000/06370_ranshi