pf2e.fyi
From Pathfinder Lost Omens The Grand Bazaar, which isn't enabled.

Eye of the Unseen

ITEM 8
INVESTEDMAGICAL
Price 450 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 +1 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 See the Unseen on you.
Pathfinder Lost Omens The Grand BazaarOGL