Hi since you are using reading glasses it appears you are in presbyopic age group that is more than 40, you have not specified your age. As you will grow older there will changes in the lens
enrich will lead to changes in the power of the eye. LASIK corrects only corneal power and has no effect on changes in the lens. Even the corneal curvature may also change post LASIK so sometimes there will be change in the number that way also.dryness can be dealt with lubricating drops.