From Pathfinder Impossible Magic, which isn't enabled.

All-Seeing Eye

ITEM 3

Price 50 gp

Usage affixed to armor or a weapon

Bulk —

This glass eyeball is slightly uncanny due to the two brightly colored crystal irises it sports on opposing sides. It helps combatants see their foes even in the darkest of situations.

Armor You gain resistance 2 to damage from illusion effects.
Weapon (fortune) After you cast a light spell by Activating the eye, your own eyesight sharpens until the end of your next turn. If you fail the flat check to target a Concealed or Hidden opponent with a Strike with the weapon, you can reroll it and take the new result.

Activate Cast a Spell

Effect You cast Light.

Pathfinder Impossible MagicORC