• smeg@feddit.uk
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    14 days ago

    we need to maintain vision basically 24/7

    I don’t know about OP, but I tend to close my eyes when I sleep

    • Nurse_Robot@lemmy.world
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      14 days ago

      But if a bear wakes you up in the middle of the night, it’s pretty helpful to have your eyesight maintained, even while sleeping, in order to just wake up and go

    • ferristriangle [undecided]@hexbear.net
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      9 days ago

      You still have vision even when your eyes are closed, and even the small amount of light that gets filtered through your eyelids as the sun rises in the morning is a significant enough stimuli to trigger the biological responses that are related to regulating sleep and managing your circadian rhythm.