trying to draw glasses. have an outline path but now need to connect the inside of the lens to the outline path to prevent it from filling over the eye lens. see picture for details.

I have created an outline of the glasses. Now, I want to add color. But I only want the eye glass frames to be filled with color. I want the fill to end where the frames end. I don't know how to prevent this from happening. I tried outlining the inside of the frames close to the eye lens pieces as shown by the orange paths and I attempted to join these paths but it cant be done as the program tells me I'm using the wrong kind of paths. How do I fill the frame with color without it covering the eyes? I am just a beginner at illustrator so any help would be greatly appreciated.