Is there an adjective expressing the feeling of light that is so bright it hurts in the eyes?
I'm looking for a synonym word that could be used metaphorically as something like "awfully clear".
Normally you describe it as a blinding (or “blindingly bright”) light.
EDIT: somehow I missed that you were looking for a metaphor. I agree with @userr2684291 that “blindingly obvious” (or “blindingly clear”) are common expressions that might be what you’re looking for.