i had my eye exam 3 years ago and the prescription was
O.D. SPH +0.75 CYL -1.50 AXIS 035
O.S. PLO CYL -0.75 AXIS 170
today i had my eye exam and the prescription is
O.D. SPH +0.50 CYL -0.75 AXIS 030
O.S. SPH PLO CYL OS AXIS OS
is it possible that the left axis has changed that much or wrong eye exam and prescription?