You are in over your pay grade. This is too complex a subject for an answer in a post. If there was a significant blow, go to an emergency room. See a physician.
Hi
Welcome to the MedHelp forum!
As caregiver pointed out, it depends on the nature of injury. A mild hit would only cause a black and blue eye that will heal with time. A more sever blow to eye will cause eye damage more than concussion. However if it was the forehead area then also blue black eye is a possibility. Concussion can occur if the forehead was hit hard. By now she must have settled down However is she has vision problems, headache, nausea etc then consult a doctor ASAP (maybe ER)
Hope this helps. Do let me know if there is any thing else and keep me posted. Take care!