OTOH, the human visual system is quite shite^W noisy in low light too. And that's even with all the built-in "neural denoising".
Maybe if it's neurons were activated by light instead of being suppressed (yes, it's inverted in there too) there would be far less noise. But that may push it out to bright light instead. And being activated most of the time will give higher levels of oxidative stress/faster degradation.
Tradeoffs everywhere...