I really think I need an eye lift for just one eye. Would this cost half of what a regular blepharoplasty on both eyes would cost?
If you really are only having a blepharoplasty on one eye and for some reason you have significant asymmetry in this area, there would be a fee reduction for doing less surgery. However, you have to be careful. Many people who think they have an asymmetry and only need one blepharoplasty really suffer from something called a brow ptosis or eyelid ptosis and there is a dehiscence in the muscle of the eyelid called the levator aponeurosis, which is responsible for holding up the eyelid symmetrically with the other eye, in which case you may need to have this addressed more so than a blepharoplasty.
If you are an unusual person who for some reason has significantly more excess tissue and drooping of tissue in one eye, yes you can do only one eye and it would be appropriately less expensive.