As a miscellaneous gear token, the use of this item in the adventure is limited only by the imagination of the player and the approval of the DM.
Monk
Adds +1 To Hit with non-magical ranged weapons. It has no effect on magical ranged weapons, spells, or any weapon being used in melee. It will affect non-magical compound weapons only if they are thrown. It may not be used in conjunction with magical ammo, even if fired from a non-magical weapon. Thrown alchemical weapons are considered non-magical and are compatible with this item.
Adds +3 to Dexterity (thus, depending on prior Dexterity score, either +1/+2 To Hit with ranged attacks, either +1/+2 to AC, and either +1/+2 to Reflex saving throws)
A rogue wearing these lenses may sneak attack while wielding a bow or crossbow, but not any other Ranged weapon. An assassin (rogue sub-class) wearing these lenses may perform an assassination while wielding a bow or crossbow, but not any other Ranged weapon.
Wearing these finely wrought goggles allows the character to see through or past the effects of invisibility, displacement magic, and mirror image effects.
Wearer gains +1 Damage with missile attacks when wielding a Common rarity missile weapon
Slot Note: Each character has one Eyes Slot. Even though this item only covers one eye, it may not be equipped in conjunction with any other item occupying the Eyes slot unless you also have a token that allows you to equip more than one Eyes Slot item.
Melee attacks made by the wearer deal +2 Damage.
These lenses do not enable their wearer to critically hit/sneak attack monsters that otherwise cannot be critically hit/sneak attacked.