Your going to make her very uncomfortable getting the eye cap off. She will thrash and try to get away, but you can get it off.

Terry cloth washcloth, soaking wet after she has soaked and firmly wipe it over her head over and over. She'll pull her head back in, and you'll find that position where she can't pull in any farther and you'll be able to just keep wiping until you get it off.

BTW, I mean soaking wet washcloth. If your shirt isn't soaked by the time your done with her, you didn't keep the washcloth wet enough.