eye redness
"Have been using SYSTANE on & off for a few weeks and have experienced severe redness, swelling & itching around my eyes.  Couldn't figure out at first what was causing, so narrowed it down to this product, and made note WHEN I used it.  Sure enough, SYSTANE seemed to be the cause. While using this eye gel and naturally blinking after it is placed in eyes, some gel gets onto the surrounding skin around the eyes, and it has caused the redness, itching & swelling.

So, be aware of this side effect."