You are both incorrect she lost it when she was fighting one of the fallen humans And deltarune is an alternate universe of And deltarune is an alternate universe of undertale made by gaster In which it was much more peaceful so there was no fallen humans So she did not lose her eye in that universe
You are both incorrect she lost it when she was fighting one of the fallen humans And deltarune is an alternate universe of And deltarune is an alternate universe of undertale made by gaster In which it was much more peaceful so there was no fallen humans So she did not lose her eye in that universe