I’m labelling this as physics rather than biology because **I’m not asking about how our body uses the light to create an electric signal, instead I’m interested in where the light that has entered the eye and hit the retina then goes after the process?**
I hope that’s clear.
In: Physics
The light is absorbed to create that electrical signal and to my recollection it also generates a small amount of heat. So the photon itself is converted entirely to heat and (electrical) energy, there is no “light” left to go anywhere, it’s in a different form altogether.
Light that isn’t absorbed in this way is reflected back out, which is how we can see eyes and even into the eye with the right equipment.
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