C.A.
Do the people she screams at wear glasses? I found that even though I wore glasses occasionally or sunglasses my youngest daughter was ok with it, but if anyone else was wearing any kind of "eye wear" she would freak out...She still does this occasionally, but rarely now and she is 2! If the people are wearing glasses you may be able to ask them to remove them, but who knows...It could be different smells too...