Materials not showing in Unity

So I'm still a noob at 3D design and game design so, here we go.

I added eye textures to my 3D model and it works just fine in Blender, but when I import it into Unity the textures are gone. Do I have to add them again in Unity? Or am I missing a step?

EDIT:
I've found a way to add the textures but when I do, everything turns pink. Still need help.

 

Bump

 

the keyword is UV map

 

My eye textures are UV mapped already, but they still turn pink in Unity.

 

Same problem, couldnt find a solution. Did you find ?

 

Im assuming you've taken these steps.

1) UV mapped the models in blender to a texture
2) Imported the model to unity
3) Created a material in unity
4) Added the texture to the Albedo on the material
5) Attached the material to the object

I'm not expert but this seems to work for me