When should we use the terms “aponeurotic blepharoptosis” and “reinsertion of the levator aponeurosis”?

It is generally considered that involutional (or senile) blepharoptosis is caused by disinsertion of the levator aponeurosis1. This type of acquired blepharoptosis is therefore also referred to as "aponeurotic blepharoptosis", by reference to its presumed etiology. However, the levator aponeurosis is rarely found to be disinserted peroperatively 2 (at most a dehiscence is found) and it has been suggested that in some cases this disinsertion could be iatrogenic and caused by the surgical procedure itself 3.