Brief Answer:
may need imaging if not done before
Detailed Answer:
HI, thanks for using healthcare magic
Bruising or black discolouration around the eyes after
head injury is sometimes called raccoon eyes.
This can occurs in a type of skull fracture called
basilar skull fracture which is fracture to the base (bottom aspect) of the skull.
This type of fracture is rare, actually only occurs in 4% or less of persons with head injury.
If you had imaging after your accident, it would have been able to identify any
fractures or any other evidence of injury.
Normally after a head injury there are criteria to determine if a person needs a
CT scan.
These are called the new orleans criteria , another is the canadian ct head rule.
In both of these, any evidence of either skull injury or injury above the
clavicle requires a CT scan.
Though the presence of the bruising may not indicate any serious injury, it would be best to have imaging if you did not have any previously.
If you did and injury was ruled out then you can observe and the bruising will resolve.
I hope this helps, feel free to ask any other questions