You're welcome. Did you want to try another preservative-free eyedrop, just in case? Even better if you kept the receipt of the Refresh Advanced from a store with good returns policy.
I like the Refresh Optive Fusion (coupon on the website may still be available); my friend who got LASIK a few years before me swears by Systane Ultra.
I suggest this because...in general, the way that surfactants (such as polysorbate 80) work is that they reduce the natural repulsion forces between aqueous and lipid layers. I believe the eyedrops may have included it to create more slipperiness in the tear layer, and possibly also "mix" the lipids in the tears better throughout. However, in theory, surfactants may also affect the integrity of the lipid membrane of cells...possibly more so with dividing cells whose structure is possibly not as secure yet. I am theorizing based on physiology and basic organic chemistry...but I have atopic dermatitis ("eczema") and skin sensitivity has been an issue all my life, sometimes including mild soaps and shampoos.