Glass Eye
Glass Eyes are invulnerable obstacles resembling 
Stone Eyes, and are almost always paired with enemies that shoot projectiles in some fashion in rooms they appear in. A Glass Eye will catch any enemy projectiles that enter its aura and cause them to orbit around itself. Once these projectiles align with Isaac, it will then launch the projectile towards him at the same speed that the projectile was originally shot.
Glass Eyes will remain active even after the room has been cleared, but will disappear once the room is left and re-entered.
Eye of Shaggoth
Eyes of Shaggoth behave similarly to Glass Eye, possessing purple rings that will capture enemy projectiles. However, upon capturing projectiles, it will alter their movement to align with that of a crosshair moves aimlessly around the room but stays in the general direction of Isaac.
These projectiles will fall after enough time has passed, and will also be blocked by 
Pillars.
Unlike Glass Eyes, Eyes Shaggoth will deactivate after the room has been cleared.
Notes
- The aura of Eye of Shaggoth can capture rocks picked up by
Kineti. - The size of the ring Eyes of Shaggoth possess is determined by the room layout.
- Multiple Eyes of Shaggoth in the room will all share the same single crosshair.
Trivia
- Eye of Shaggoth's effect resembles that of
Eye of the Occult. - The Eye of Shaggoth is named after Shoggoth, a Lovecraftian creature made up of slime and many eyes.
- The name was misspelled with an "A" by accident, however it is confirmed that this will not be fixed in the future.
Gallery
Back of an Eye of Shaggoth.
A deactivated Eye of Shaggoth.
The reticle used by the Eye of Shaggoth.
