Does damage to the levator muscle become immediately visible after a blepharoplasty? (photos)

I acquired Ptosis in my left eye after an upper blepharoplasty. That surgeon hypothesized that blepharoplasty 5years prior damaged levator muscle but scar tissue held it in place following years until her blepharoplasty. The previous blepharoplasty excised only minimal amount of skin, no contact with levator muscle. No visual or sensorial indication of ptosis ever before 2nd blepharoplasty. Could ptosis or levator muscle injury occur previously without indication until after 2nd blepharoplasty?