From Pathfinder Lost Omens The Grand Bazaar, which isn't enabled.

Eye of the Unseen (Greater)

ITEM 14

Price 4000 gp

Usage worn

Bulk L

This prosthetic eye was designed by elven crafters but comes in a range of appearances for different ancestries. While wearing the eye, you gain a +2 item bonus to visual Perception checks.

Activate command, envision

Frequency once per day

Effect You focus on the eye to see the unseen. The eye casts 5th-rank See the Unseen on you.

Pathfinder Lost Omens The Grand BazaarOGL