First of all, there are many reasons for people to develop blurred version. Among them, inflammation is the most commen reason. eyes get infected by virus, bacteria and parasite. Therefore it affects the nerves in the eyes and people start to feel the blurred vision. There is another reason of blurred vision. That is cervical spondylosis. Many adults feel the symptom of eyes has great relationship with the posture of necks. That's because with the illness of Cervical intervertebral disc herniation, the intervertebral disc may press the nerves of eyes. Therefore, the eyes can have many problems like blurred vision. As a result, the eye problem is closely related to the severity of neck problems. Maybe your injury of neck caused the pression of eye nerves. Treat your neck well, your blurred vision will be cured. Then you'd better see a doctor to have an overall check.
