I am curious about reviews of filler procedures.

I am concerned because my under-eye area is completely flat and lacks volume, making my impression look too sharp and older. Even when I try to draw in "aegyo sal" (cute under-eye bags) with makeup, it always ends up looking messy, so I am actively searching for treatments that can plump up my under-eyes using injections. I have heard that since the skin under the eyes is so thin and sensitive, if the volume isn't matched exactly on both sides, it is easy for the eyes to become uneven or bumpy. Is this true? I am also afraid of side effects like the Tyndall effect, where the skin shows through and looks like a bruise. I am curious to read reviews from people who have naturally filled their under-eyes and achieved a cuter look. Please also recommend a place that specializes in molding and advises on how to handle potential side effects. Does the eye shape definitely become softer after getting fillers?