Normally the lower portion of the orbit is filled with fat pad which acts as a cushion and support to the eyeballs.

When there is too much fat tissue, or if it shifts forwards in its position, it will cause a swollen eye bag. On the contrary, when we age, the fatty tissue may degenerate and shrink, same in a person who may be excessively under-weight, then it will give a hollow bony appearance with deep tear troughs and dark eye circles.

To deal with this, we can inject a small amount of to fill it up with great result. However,Sculptra should not be used in this area. Some doctor will also use autologous fat transfer.