Pores forming lines after undereye filler - how do I fix this? (photos)

I've got undereye filler twice and most recently i had some dissolved because I had a bit of a dent under my eye. I noticed after that the pores under one of my eyes started to connect and form lines. I have no idea how this happened. I went to the doctor and she said it wasn't because of the filler, it was because my pores are large and connecting. I never had these before filler and think my skin must have stretched. How do I fix this? Why did this happen?!