It is possible that we are unaware of a chemical that produces this phosphene
我们可能不知道有一种化学物质能产生这种磷。
Life Noggin
These visual images of light and colour are called phosphenes and they’re created by your own body.
这些光和颜色的视觉图像称为光幻视,它们是由您自己的身体创造的。
英语百科
Phosphene
A phosphene is a phenomenon characterized by the experience of seeing light without light actually entering the eye. The word phosphene comes from the Greek words phos (light) and phainein (to show). Phosphenes that are induced by movement or sound are often associated with optic neuritis.