Topic: ESOPRS 2021 ePoster sessions
Time: Sep 17, 2021 16:00 Amsterdam, Berlin, Rome, Stockholm, Vienna, 15:00 London
(plain text version here)
Quantitative Analysis of Epithelial and Stromal Remodeling After Eyelid Malposition Surgery Using MS-39 Tomography
Author: Maria Angela Romeo
ePoster Number: 168,00
Purpose
To evaluate epithelial, stromal, and tomographic corneal changes following r eyelid malposition surgery using MS-39 (CSO, Italy) anterior segment tomography, with specific focus on central and peripheral epithelial profiles, curvature, and optical quality.
Methods
This prospective study included 52 eyes from 34 adults (mean age: 69.8 ± 12.3 years) with eyelid malpositions. Among them, 39 eyes with involutional ptosis underwent either levator aponeurosis advancement (n = 26) or frontalis suspension (n = 13); 13 eyes with ectropion underwent lateral tarsal strip (LTS) surgery. Surgical choice was based on eyelid function, position, and standard oculoplastic indications. MS-39 imaging was performed preoperatively and at days 7, 30, and 90. Quantified parameters included minimal total, epithelial, and stromal thickness (Thk min, epi-Thk min, str-Thk min), central corneal thickness (CCT), corneal volume, epithelial thickness in central (3 mm) and paracentral (3–6 mm) zones (superior, inferior, nasal, temporal), K values (K1, K2, Kavg) at 3 mm, cylinder power and axis, R flat/steep, anterior surface irregularity (RMS/A), and aberrometric indices (LCA, HOA RMS). Structural indices (SI, CSI) were also analyzed.
Results
Postoperative imaging revealed significant improvement in superior epithelial thickness, reduction in inferior–superior asymmetry, and localized increase in epithelial thickness centrally and temporally. Thk min and epi-Thk min increased in ptotic eyes, indicating partial reversal of localized compression. Kmax and anterior CYL decreased slightly, while CCT and corneal volume remained stable. No significant changes in biomechanical or aberration parameters were noted. Improvements were more pronounced following ptosis repair.
Conclusion
MS-39 tomography allowed detailed characterization of corneal and epithelial remodeling after eyelid surgery, missed by standard imaging. These metrics may serve as sensitive markers of functional restoration and assist in preoperative planning for both oculoplastic and anterior segment procedures.
Additional Authors
| First name | Last name | Base Hospital / Institution |
|---|---|---|
| Alessandro | Gaeta | Department of Internal Medicine and Medical Specialties (DIMI), Università di Genova, 16132 Genova GE, Italy. |
Abstract ID: 25-366
