Postoperative Blepharoptosis after Pars Plana Vitrectomy Procedure
Parya Abdolalizadeh1 *
- Eye and Skull Base Research Centers, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran
Abstract: To describe the frequency of blepharoptosis and factors affecting it after pars plana vitrectomy (PPV) procedure.
Methods: In a prospective study, patients were recruited consecutively from October 2016 to June 2018. Upper eyelid margin reflex distance 1 and 2 (MRD1 and 2), upper eyelid crease height and levator function were measured before, 1 and at least 6 months after surgery by the same investigator. Clinical and Clinically significant ptosis were defined as ≥ 0.5 and ≥ 2 millimeters drop of MRD1.
Results: There were 60 eyes from 57 patients. Majority of surgeries were performed by the fellows (63.3%, 38/60) and under general anesthesia (95.0%, 57/60). Clinical and clinically significant ptosis following PPV were 47.2% (25/53) and 11.3% (6/53) at the last follow up (at least 6 months), respectively. MRD2 (P=0.389) and eyelid crease height (P=0.057) did not significantly change. Surgeons’ level, time of the procedure and other variables were not significantly impacting the frequencies.
Conclusion: Persistent clinically significant ptosis was observed in 11% of patients undergoing PPV. No variable was significantly associated with persistent postoperative ptosis after PPV.
