If your character is struck blind, you should RP the effect of the blindness. Your character is unable to see, and you should not (through tab) be able to see around that.

Although it is not a paralysis spell, your character should at the least have a reduced movement speed (to reflect carefully feeling your way forward) or be tripping into walls, falling over, and so on.

Characters with the blind-fight feat would respond much better, but still basically be unable to see.

The exact degree of how you RP your blindness is up to each individual player, but please do incorporate it into your RP in a realistic and sensible way.