After chalazion surgery I have uneven eyelids, one eye is smaller than the other one. (Photo)

Those look like sudoiferous cysts on the lid.  They are benign growths that can be removed surgically.  See an oculoplastic surgeon to have them removed with local anesthesia. 

You might have a slight ptosis.  This can occur commonly after any eye surgery.  But you also have a brow asymmetry which is more noticeable.  You could try some Botox to drop the higher brow, or to lift the lower brow.    

Tear trough implant is practically the same as lower orbital rim implant. Technically, the orbital rim implant would expand the whole lower eyelid area whereas tear trough implant is mainly the inner area but the terms are used loosely. The important points are you want to use silicone implant...

Chemosis can occur after a lower lid bleph.  It can be quite irritating, but will eventually go away.  You need to keep it well lubricated:  artificial tears throughout the day, and then some lubricant ointment at bedtime.  I often will prescribe a steroid drop as well.  Patching at bedtime will...

It appears you have right upper eyelid ptosis which should be corrected by eyelid ptosis surgery, likely using scarless technique with quick recovery. See an oculoplastic surgeon.

I see what is bothering you. It is from an assymetrical bony development of your face. I would go see dr Arlen deny or dr John Jensen at the medical college of Wisconsin. They are both excellent craniofacial surgeons and will be able to provide you options based off of your bony structure and...