Cryolite EyeEquipment 6
Source Pathfinder Dark Archive
Weight negligible
You tore your eye from the socket and offered it to whatever spirit would take it. In return, you received a glass eye in its place. This eye allows you to see as normal, and when you succeed at a Perception check against an illusion, you get a critical success instead. Once per day, from any distance, the entity that holds your bargained contract can overwhelm your cryolite eye with magical energy, causing images to float over your vision that inflict the Dazzled condition on you for 1 minute.
Activate 
command
Frequency once per day
Effect You look through the glass eye sealing your bargained contract. The contract casts See Invisibility affecting you.
Traits
This rarity indicates that a rules element is very difficult to find in the game world. A rare feat, spell, item or the like is available to players only if the GM decides to include it in the game, typically through discovery during play. Creatures with this trait are rare. They typically can't be summoned. The DC of Recall Knowledge checks related to these creatures is increased by 5.
ContractA contract is a type of item that magically establishes an agreement between multiple parties and typically grants magical benefits.
InvestedA character can wear only 10 magical items that have the invested trait. None of the magical effects of the item apply if the character hasn't invested it, nor can it be activated, though the character still gains any normal benefits from wearing the physical item (like a hat keeping rain off their head).
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.