Polycythemia Rubra Vera (PRV): common symptomsPRV: June 22, 2017 mfadmin Medicine Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review. Polycythemia Rubra Vera (PRV): common symptomsPRV: Plethora/ PruritisRinging in earsVisual blurriness