did anyone of you wonder if there were any Kryptonian green lanterns or how the corps didn't help Jor-el save krypton or something??

I dont know how the lanterns work, but would they really save a planet destroyed from within? I thought they just countered external threats.

Anyway, a kryptonian lantern would be kinda redunant since they dont need the powers.

Maybe there might have been one in the past, but Tomar Re was the Green Lantern of that sector.

There's actually a story where he tried to save Krypton but failed.