I would recommend that you seek the care of your eyeMD to determine the cause of the discoloration. An appropriate treatment can then be aimed at the cause rather than the use of visine, which temporarily constricts blood vessels and makes one eyes whiter. It might be possible to prescribe some drops aimed at allergy.
Sandy T. Feldman, M.D., M.S.
ClearView Eye and Laser Medical Center
San Diego, California