Proptosis in the Binding of Isaac: Rebirth (BOIR)
Proptosis: Short range mega tears

Proptosis is a passive item in The Binding of Isaac: Rebirth (TBOIR)


Eye inside a blood puddle.


Tears become bigger and do a lot more damage.

The tears will start out as large tears and become smaller the further away they travel. They will deal from 200% damage (if hit at the beginning) to 30% damage (at max range, which is shortened as well).

Character Appearance[edit]

Character's eyes bulging out of head, with blood under them:


Strategy Guide/Tips[edit]

  • Even with the shortened range, this item is very powerful as you can kill enemies in a lot less shots and your accuracy will improve too since the tears are bigger.
  • Shoot the enemies from as close as possible.
  • With The Ludovico Technique and A Lump of Coal, the controlled tear will always have the full damage even if it's far away from Isaac.


Proptosis has the following Synergies and Interactions with other items:

Item Synergy
Godhead Larger halo
Soy Milk Tears will disappear almost immediately after being shot, making it hard to hit anything and causing less damage.
The Ludovico Technique Tear's size depends on how close they are to Isaac.
Anti-Gravity Tears only start decreasing in size when they start moving.
Chocolate Milk Bigger tears
Brimstone Double damage effect retained with no loss to damage over range.
Godhead Larger halo


Proptosis Seed[edit]

  • 9SBT Q10B (pc) (first treasure room)


  • "Proptosis" is a medical term referring to an abnormal displacement of the eye.