Binding of Isaac: Rebirth Wiki

Added in Afterbirth

Pupula Duplex is a passive item added in The Binding of Isaac: Afterbirth.


  • Grants spectral tears.
  • Removed in Repentance Tear size multiplier: 2x.
    • Added in Repentance +0.6 tear size.
    • Despite their crescent shape, the tears are still considered round hitbox-wise.


  • Godhead Godhead: The damaging aura benefits from the increased size significantly.


In-game Footage[]


  • "Pupula Duplex" is said to be a condition in which a person has two irises and two pupils in one eye, without any actual recorded cases. An actual rare medical condition similar to it exists, called polycoria.
  • This item's icon is similar to Diplopia Diplopia.


PC HN4T QMN7 (First floor Treasure Room)

PC Normal mode only HLTD B7WD (Treasure Room adjacent to spawn)

PC Normal mode only XVA6 BQFC (First floor Treasure Room)

Switch Greedier mode only C6VD 4WXP (First Golden Treasure Room)