Is there any treatment that could make my downturned eyes look more cat-eye? (Photos)

Thank you for your question. In my experience it is best to remove all filler from the lower lid with an injection of Vitrase before any surgery. Lower eyelid filler can still be present after 3.5 years. So I would have the filler removed and then re-evaluate the surgical approach.

For significant improvement, hooded eyelids require surgery if there is enough skin. For nonsurgical treatments: Radiofrequency (Thermage or Venus Legacy/Viva), injectable fillers, and a Botox brow lift can help contour the eyebrows and lift the eyelid skin. I recommend getting a formal...

A small amount of Botox may help the eye twitching improve.  For the under eye area you may find benefit from fillers which help to disguise under eye irregularities.  See an expert injector near you to learn more.