One good surgeon has seen my eyes and told me that I have a complicated type of ptosis called a white line levator dehiscence. He suggested a surgery that - locating the elevator tendon, repositioning it into the upper eyelid at the level of the tarsus. - mobilizing anterior orbital fat to help fill the upper eyelid fold. - Anchor blepharoplasty to support the upper eyelid lashes. But I am afraid that it could be very challenging and I will end up with disappointing results. Are they common?