Is it Possible for Undereye Restylane to Drop to Frontal Cheek Pad?

It's possible. However, I would follow up with the provider for assessment. Without seeing you in person, it's difficult to know whether or not you had any fat they were working around when injecting the tear trough, or whether you're having some expected swelling.

Without photos, it sounds as if you may be experiencing swelling.. If this is the case, it will improve. As other panel members have mentioned, it is best to wait 10-14 days before deciding how things have "settled."  It is rare for product to migrate, but if it has occurred you can use Vitrase to correct this.

There are several possibilities here:

1. You are still swollen.

2. Filler was put in the wrong place.

3. You are holding more water in association with the treatment than is idea.

The treatment for the first possibility is simply allowing more time for things to settle.  The treatment for items 2 and 3 is adjustment with the enzyme hyaluronidase.

At Cosmetic Boot Camp, one of the most comprehensive courses for board certified dermatologists and plastic surgeons, the consensus is always, every year, that Restylane is the preferred filler for the tear trough area. This is because it "sticks" better where it is injected. The likely explanation for what you are expereincing early on is swelling. Be sure that you do not sleep face down; try to sleep on your back on 2-3 pillows. Avoid alcohol and salty foods. See your treating physician if it is not better in 5-7 days.

Although it is extremely rare, there are reports in medical literature of fillers migrating. However, I would wait and make sure what you are seeing isn't swelling.