Some patients report visual symptoms after auto injuries. These symptoms usually fall into two categories: brain injury or neck injury.
With brain injuries, visual symptoms can be caused when the back of the head is injured.
Here are some useful articles on brain injury after auto accidents:
Brain Dysfunction and Whiplash
Mild Traumatic Brain Injury and Reversible Neuropsychological Deficits
Mild Traumatic Brain Injury: Outcome Factors
Neuropsychological Testing & Whiplash
Post-Concussion Syndrome After Mild Brain Injury
Postural Stability and Neck Trauma
Similarities Between Whiplash and Brain Injury
With neck injuries, the visual problems can arise when the balance system is disturbed.
Here are some helpful articles that discuss the problem of postural control after an auto injury:
Whiplash and Postural Control Disturbance
More on Proprioception and Whiplash
Objective Evidence of Nerve and Muscle Changes after Whiplash Injury