Should I get a LASIK enhancement for left eye to reduce monovision discomfort and address the concern of vision regression?

44 yr old analyst had Lasik monovision 7 months ago. (prior PWR - 7.5, CYL -1 both eyes) Achieved targeted Right eye 0 diopter , Left eye - 1.5 diopters after OP. At 3 month post-OP, Right eye regressed to -0.5 and the Left to - 1.75. I feel some depth perception discomfort and blurriness due to dry eyes. 1. How much more regression would occur? 2. Would the amount of monovision cause eye strain and accelerate regression? 3. Is an enhancement worthwhile to improve left eye by 0.5 or 0.75 now?