Anyway, the reason I'd never heard of scotopic vision before is that most of us don't experience it much.

无论如何，以前从未听说过暗视觉原因大多数人都没有太多验。

Whereas our normal, bright-light photopic vision is produced by three types of color-sensitive cone cells, dark scotopic vision is produced by the eye's rod cells, which are great at sensing something's brightness, but can't discriminate different colors.

正常视觉由三种对颜色敏感视锥细胞产生，而暗视觉由眼睛杆状细胞产生，它非常擅长感知事物度，但不能区分不同颜色。