光こう感かん覚かく

noun

light perception; light sensation

Technical term used in physiology, ophthalmology, and sensory science to refer to the basic ability to detect light, often contrasted with form perception or color vision.

• 光こう感かん覚かくは視し覚かくの最もっとも基き本ほん的てきな機き能のうである。

  Light perception is the most basic function of vision.

• この実じっ験けんでは被ひ験けん者しゃの光こう感かん覚かくの閾いき値ちを測そく定ていした。

  In this experiment, the subjects' light sensation threshold was measured.