The pupil dilation is the parasites devouring the optic nerve. The juicing she's doing is the only reason the hive in her neck dissipated: the only thing that kept them from taking over her entire nervous system. But it's not enough to purge them with the immune system being offline from the graphene. Even after everything, she's still in denial, still thinks she drew the short straw, hasn''t figured out that they're all short straws.