Dogs Eyes Swollen Shut

What is a treatment for pet dog’s eyes Need answer fast!?
My friend’s dog got out and got into some construction on the road. the dog rolled in some sort of white dust they said it was lime dust and the dog’s eyes are both swollen shut. I would call a vet but it’s late. does anyone know what she can do for the dog or if this could cause blindness?
Get out the phonebook – there are 24/7 emergency vets. If you call your vet, they usually leave an emergency number on the machine. CALL RIGHT AWAY AND GET TO THE VET!
Rescue dog Rosie, named for her sweet disposition * ADOPTED!