Has she regain her consciousness?
Can she briefly track objects or sounds?

Patients with open eyes, but non-responsive are known as apallic patients.

yes she is conscious knows everyone , she talks to everyone she just cant see and her eye lids wont stay open

There are many types of eye problems after a traumatic brain injury. The injury can be to the visual cortex, or directly to the optic nerve. There can also be injuries to the nerves that control the eye movements or the control of the eyelids.
When there is a posttraumatic loss of visual function, trauma-induced injury to the optic nerve called traumatic optic neuropathy, is considered as a cause.
A head injury can cause palsy of the 3rd cranial nerve, leading to condition when eye can move only to the middle, the eyelids droop, and the pupils may be widened (not responding to light)

How's your sister now?