I often have blurred vision along with my inner ear issues. I do exercises from my vestibular therapist that help.

This is common in inner ear balnce disorders, but not BPPV. This simply suggests that there is more going on that BPPV alone.

What sort of other things could cause the vision issues?
Also, why couldn't bppv cause it since it is an inner ear issue? Just curious....

The primary job of the vestibular organ is to help you keep the world in focus during head movements. In order to accomaplish this job, the balance system has partial control over eye movements. Scar-like injuries to the vestibular organ can affect how well this job is done. Until the brain compensates for the injury, the eyes tend to drift off target (especially after an eye movement), causing blurring of vision.

BPPV symptoms are only triggered by specific head movement (head tilt up, lay back in bed, roll toward the affected ear), not by movement of the eye. The head movement causes the displaced crystals to shift so that they either strike the cupula (nerve bundle) or create a wave action in the endolymph fluid that strikes the cupula.

Could bppv by itself cause injury to the vestibular organ? What could cause injury? Why would the ENT not be able to pick up something other than just bppv? For the record, I can't stand the guy, he won't listen just talks endlessly about nothing that really pertains to my individual problem...I see a neuro tomorrow. I hope something gives soon because I really need my life. Also, something else I want to mention, activity makes my symptoms worse. This never use to be the case. This is a new thing along with the vision, ect.

No, BPPV does not injure teh balance organ, BUT BPPV often occurs as a result of other balance system injuries. Dr. Shepard discusses this idea here:

http://www.audiologyonline.com/interview/interview_detail.asp?interview_id=377

Tom,
I've been told that in addition to bppv I also may have secondary endolymphatic hydrops. I started a low sodium diet today. In your experience can it be controlled this way and has it ever progressed to full blown menieres? Just a little worried about this. My Dr. tells me it is not menieres but it sure sounds like a close relative when I looked on VEDA's web page. A little too close for my comfort. Curious what your thoughts are about that disorder as I've been focusing soley on the bppv and haven't considered other issues until now.

In our experience, 80% of folks with secondary endolymphatic hydrops (SEH) and Meniere's do very well with the low sodium diet, sometimes supplemented by a diuretic. Keep in mind that the symptoms of migraine associated vertigo can be VERY similar to SEH, and there is no proof-positive test to tell one from the other. If treatment for SEH does not help, consider a trial of migraine treatment.

More info here:

http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=11775522&ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum