Many patients who did not have Lasik have reported multiple problems after having multi-focal intraocular lenses (IOL) implanted during cataract surgery. Your doctor appears to believe that the changes to your cornea from Lasik surgery would make multifocal IOLs even more problematic.
Prior Lasik does not commonly complicate conventional cataract surgery, however the calculations to determine the correct refractive power of the IOL can be a bit more challenging. See
cataracts after Lasik. It can be very helpful if you have your eyeglass prescription (or even old eyeglasses/contact box) from before Lasik, or if your Lasik doctor took the measurments for cataract surgery before Lasik. Inform your cataract surgeon who did your Lasik and approve release of your Lasik information to help your cataract doctor with those calculations.