Has my vision affected my condition or has my condition affected my vision?

Simply put
 the answer is
because you may be suffering from a Visual Midline Shift as a result of Post Trauma Vision Syndrome.

What is post-trauma vision syndrome (PTVS).
PTVS is a defect that follows a neurological event or trauma (ie. concussions, whiplash, Lyme's Disease, Stroke, MS, Parkinson's, PTSD, and the like).  It may also follow chronic pain, psychological trauma, or physical injury. This may interfere with performance causing impaired learning, attention (ADD) symptoms, poor concentration, and memory. These visual dysfunctions can manifest themselves as anxiety and panic disorders as well as spatial dysfunctions affecting balance and posture. PTVS is commonly responsible for ongoing symptoms after an injury.
Vision leads movement and movement leads vision.

VISUAL MIDLINE SHIFT SYNDROME (VMSS) is an unusual phenomenon that can accompany PTVS following a number of neurological events where your visual process changes it's orientation to the concept of midline. This changes how your brain filters the information it receives, and in turn, how your body moves.

What is Neuro Visual Postural Therapy (NVPT) and how can it help me?
NVPT therapy works to reduce the strain on the focal visual system, stabilizes the visual and postural fields, and rehabilitates functional binocularity, executive processing, higher level functioning, posture, balance, coordination, muscle tone, movement patterns, and visual-perceptual symptoms that accompany PTVS.

The Physical Therapist, together with the Speech Language Pathologist, Occupational Therapist, and Optometrist, become the integral team for rehabilitation.