Unilateral eye pressure shifts

When I first began to measure my pressures around 2 years ago, my IOP was fairly even between my right and left eyes. This remained relatively unchanged for a few months, but then an interesting (and alarming at the time) thing happened; I began to see a pressure shift towards my right eye. This actually became quite a profound difference as time went on., and it began to concern me because I felt it might signal the start of some 'problems' with my right eye.