I had another followup exam last week. They just got this neat machine that can measure higher-order aberrations, such as the halos I saw. I still have some very minor halos that this machine can measure, but I don't notice them normally. Things like dust and ice particles in the air cause far more noticable halos (the type everyone can see, for example on a dusty night), even up close. At this point, the only noticable side-effect is occasional dryness, and there's still time for that to get better.