To me that looks like malar oedema.
I've had tear trough fillers. I go to an experienced GP who has done masses of training in injectables. She costs but I would never go anywhere cheaper, it's not worth it.
She explained that you don't use regular filler under the eyes. Normal filler is hydrophilic, that is that when it's injected it absorbs water from the body and swells, making the filler effect greater than that of just the injection. Under eye filler should be hydrophobic, ie it rejects water and the filling is only the injected filler.
The reason is that when a hydrophilic injection is used the swelling due to water absorption is unpredictable. And what happens (sadly quite often) is that the swellling causes blockage of the tear ducts/lymphatic drainage. So bodily fluid builds up because it can't escape, causing the oedema. Using a hydrophobic solution means that only the injected filler is responsible for the filler effect and as long as it's injected by someone who is well trained and competent, and avoids those structures, there will be no fluid build up because it can drain normally.
I notice from your photo that the ridge goes to the outside of your cheek from the corner of your eye - the tear duct, and that's why I suspect that it is oedema rather than misplaced filler.
I hope that's of some help.