Lower transconjunctival bleph, w/ fat grafting 15 weeks ago, why is my left eye still so swollen and asymmetrical? (photos)

You need to give it more time to allow the swelling to go down.  Swelling after fat grafting in the lower eyelid can take months to go down and you should give it al least 6 months after surgery.  Be very cautious about further kenalog injections in this area.  Give it more time before doing anything else.

Hello KinT.O.,It is not unusual to have swelling this far out from lower transcon bleph with fat transfer. Sometimes steroids can ring the swelling down. This is a discussion you will need to have with your surgeon. Remember that the lower eyelid is the thinnest skin in the body with increased vasculature and compromised lymphatic system. Edema is very common from your surgery. Hope this helps. Patience for another 2-3 months.Cheers

Here is the thing though, you should let this heal 6 to 12 month before having a surgical revision.  Persistent swelling associated with the fat graft can persist for many months. On the other hand, kenalog injections have proven highly unreliable for resolving issues with fat grafting. The steroid can kill your native fat and cause skin atrophy.  Consider reposting in 2 more months.