One hospital says they recommend adding minced cartilage to raise the bridge of the nose between the eyebrows, but
 it's not easy to find reviews of the surgery.
When I asked if it wouldn't be bumpy, I was told that all I had to do was cover it with donated dermis.
 
Have you ever heard of this surgery?

I'm only trying to slightly raise the area between the eyebrows. They
 
said that if I put silicone on the bridge of my nose, it will show through because my skin is thin.
 I was advised to put 1-2 milliliters of silicone at another hospital, just enough to make the corners a little smoother.