Same thing according to Mayo Clinic.
My youngest had it as a baby and her eyes got so gungy that we had to wash the crust away with warm water just so she could open her eyes after a nap. It was bloody miserable. I've always though 'pink eye' makes it sound unreasonably nice, like those white rabbits whose eyes look red!
https://www.mayoclinic.org/diseases-conditions/pink-eye/symptoms-causes/syc-20376355