Leech Therapy for Blood Pooling - Is This Possible?

It would probably be best to avoid the use of leeches in the periocular area.  Try warm compresses and massage to help clear the blood.  It will go away with time.  Good luck.

Leeches were widely used medically in the 19th century. Their use was resurrected i the 1980's in microsurgical cases to reduce venous congestion. While leeches are helpful in these cases, their use is not without risk. The leech sucks blood from both its ends and defecates from multiple openings along its side potentially causing serious infections.

Blood clots and bruising will not be improved by leeches and using them is at best useless but potentially dangerous.

Dr. Peter Aldea

I would think you wouldn't want a leech anywhere near your eye unless there was a dire need for it due to complications of a major reconstructive surgery.  Give it time the lump will go away.  Try some massage.