裸ら眼がん視し力りょく

noun

unaided vision; naked-eye acuity; uncorrected visual acuity

Refers to visual acuity without glasses or contact lenses. Commonly used in medical, optometry, and everyday contexts.

• 裸ら眼がん視し力りょくが0.1以い下かなので、運うん転てんするときは必かならず眼鏡めがねをかけます。

  My unaided vision is below 0.1, so I always wear glasses when driving.

• 健けん康こう診しん断だんで裸ら眼がん視し力りょくを測はかってもらった。

  I had my uncorrected visual acuity measured at the health checkup.