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rebbel's avatar

Humans are not to look directly in to the sun. What will happen if one does?

This afternoon, while lowering my sun screen, the sun was (almost) in my eyes.
I wore sunglasses and was able to look in it.
Without them I couldn’t.
Then I thought about this question.
What will happen when one does look directly in the sun?
What I would like to know is what factually happens, biologicially, physiologically if that makes sense?.

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