She's prepared

They missed the obvious....

and for a second I forgot about contacts and was seriously worried about what someone would do without ears

Sometimes people can be allergic to certain contacts or have an eye infection so they couldn't use them

I've never worn them, but I know contacts can be seriously uncomfortable. And when you lose one sense, all your others go higher, a la making up for what's lost. This would probably mean your sight and actual eyes would become much more sensitive, so contacts could mess you up.