Glass Eye is a passive item added in The Binding of Isaac: Repentance (v1.7.5). +0.75 damage +1 luck. Glass Eye: Picking up a second copy of the item gives Isaac a unique costume with both eyes replaced. The damage up and luck up stack as expected. Glass Eye is one of the few items that will give Isaac a unique costume when two copies are acquired, along with Brimstone and Guppy's Eye.
The Binding Of Isaac Rebirth: How To Unlock All 22 Endings
Binding of Isaac: Rebirth Items - Isaac Cheat Sheet
Eye, The Binding of Isaac Wiki
Ojo de vidrio, The Binding of Isaac Wiki
ArtStation - Item 001 - The Sad Onion
RainDB - Home
The Binding of Isaac
Steam Workshop::Best Isaac Mods [AB+/REP]
NEW Reworked Bag of Crafting (Item Guide)
Gamera (GAMERA -Rebirth-) Wikizilla, the kaiju encyclopedia
Roger Zelazny, Creatures of Light and Darkness
Gamera (GAMERA -Rebirth-) Wikizilla, the kaiju encyclopedia