Migraine can be associated with a lot of ocular symptoms like transient blurring of vision, heaviness, pain etc. more towards one side. But the eye symtoms usually get relieved once the attack of migraine is over. If your blurred vision is constant & if the floaters are of recent onset, you need to get your eyes examined & get your retina evaluated (specially as you have had a history of trauma in same eye).
Next Steps
Consult physically to an ophthalmologist nearby.
Health Tips
Dont delay if the above symptoms are increasing.