Impact of modified external lower lid blepharoplasty on eyelid position in Negative Vector eye configuration: A case control study
Author: Daniel Ezra
Base Hospital / Institution: Moorfields Eye Hospital
ePoster presentation
Abstract ID: 24-427
Purpose
For negative vector eye (NVO) configuration, the transconjunctival approach to lower lid blepharoplasty is preferred. The transcutaneous approach is more versatile but the procedure poses certain risks associated with scarring and loss of orbicularis tone, resulting in eyelid malposition. To address these issues, modifications have been made to the traditional lower eyelid blepharoplasty technique, and this study aims to investigate the effects of these modifications on the incidence of lower eyelid retraction.
Methods
This is a single-centre, retrospective, case-control, study. The case group were comprised of patients with a NVO configuration undergoing transcutaneous blepharoplasty. The control group included patients without NVO configuration also undergoing transcutaneous blepharoplasty. Photos in primary gaze of patients were taken pre-operatively and at 1-week, 6-week and 6-month review. Photos were then analysed using phot-editing software to calculate the amount of inferior scleral show.
Results
59 patients were included in this study making for 118 eyes, 60 in our case group and 58 controls. In the case group, inferior scleral show reduced significantly from 0.07mm to -1.15mm (p=0.001) before increasing at 6-weeks to -0.49mm (p=0.07) and returning toa rough baseline or 0.03mm at 6-months (p=0.88). In the control group, a similar pattern was seen with a significant reduction in scleral show at 1-week (p=0.02) before recovering to non-significant differences at 6-weeks and 6-months (p=0.8, p=0.2). No significant difference in scleral show was identified between case and control groups at any point in follow-up.
Conclusion
The modified lower eyelid blepharoplasty is a safe for patients with an NVO configuration which does not increase risk of scarring or contractile dysfunction with no resulting eyelid malposition when compared to patients without the NVO configuration.
Additional Authors
| First name | Last name | Base Hospital / Institution |
|---|---|---|
| John | Venkis | Moorfields Eye Hospital |
| Alia | Issa | Moorfields Eye Hospital |
| Caroline | Wilde | 152 Harley Street |
| Tessa | Fayers | 152 Harley Street |
| Michelle Khan | Khan | 152 Harley Street |
| Konstantina | Sorkou | 152 Harley Street |
| Moorfields Eye Hospital |
