It is the most common cause of dizziness. The crystals lie on a layer of gel in the inner ear. If these crystals somehow escape into the semicircular canals, the patient becomes dizzy. Dizziness typically occurs when turning left or right in bed, trying to pick something off the shelf, or sudden head movements. It lasts as little as seconds and may be accompanied by nausea and vomiting. A feeling of drowsiness may follow. There is no hearing loss or ringing in the ears.
Diagnosis – treatment:
The diagnosis of this disease is made with the Dix-Hallpike maneuver. If positional vertigo is diagnosed with this maneuver, another maneuver called the Epley maneuver will put the crystals in place and the patient will be treated. Medications are not effective in the treatment of positional vertigo.