what are the bright lights that we see when we close our eyes?

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what are the bright lights that we see when we close our eyes?

In: Biology

Our white blood cells, i believe. But there’s surely a biologist or doctor here who can give a good explanation.

If you’re seeing bright lights with your eyes closed, you may have a partially detached retina and should be seen by an eye doctor immediately

Depends.

Sometimes our sight cells “short-circuit” and fire at the wrong time, which makes our brain think there’s a light there when there isn’t – these are called “phosphenes”.

They can also fire if the pressure inside the eye changes (this is why a blow to the head can cause you to “see stars”).

Fun fact: astronauts experience a unique version of this caused by a specific kind of radiation. Normally this is absorbed in our atmosphere, but when in space it passes through metal and flesh until it reacts with something in our eye, creating a flash of light. You can read more about it here: https://en.wikipedia.org/wiki/Cosmic_ray_visual_phenomena

EDIT: In order to be more specific I’d need to know more about the flashes themselves and when you see them.