Third Eye
From Sourcebook Wiki
Transmutation, alchemist 1 (??other classes) Range: Personal Duration: 1 min/level Casting Time: 1 standard action
You sprout an extra eye from your forehead that grants you a minor boost to perception or improves your existing vision.
If you have darkvision or low-light vision, you may choose to increase the range of those by +10 feet. Alternatively, you may choose to get a +2 competence bonus on perception checks (this is the only option if the character possesses neither darkvision or low-light vision).
This extract may be taken multiple times and does stack, but the alchemist grows another eye for each casting.