Comparative Analysis of Conjunctival-Scleral and Muscle Thickness After Horizontal Muscle Resection and Plication
Conference paper > Summary Text · 2025
Authors: Muhammed Dara TAŞ, Elif DEMİRKILINÇ
ESA-TOA-AAPOS 2025, Türkiye, İstanbul, International, Verbal, Summary Text, 2025-2025, pp 105-105
Summary
<p>Purpose: To compare conjunctival-scleral thickness and muscle thickness measurements using anterior segment optical coherence tomography (AS-OCT) before and after extraocular horizontal muscle resection versus plication surgery. Materials-Methods: The study included 21 eyes from 18 patients patients who underwent extraocular horizontal muscle resection or plication surgery. Conjunctival-scleral thickness and muscle thickness at the tendon region were measured using AS-OCT (DRI OCT Triton plus; Topcon, Tokyo, Japan) preoperatively and postoperatively at 4 months. Results: The mean age of the patients was 16.2 ± 7.41 years, and the female to male ratio was 11/7. Surgery was performed on 9 eyes for exotropia and 12 eyes for esotropia. Resection procedures were performed on 10 muscles (6 lateral, 4 medial rectus), while plication was performed on 11 muscles (7 lateral, 4 medial rectus). It was observed that muscle thickness and conjunctival scleral thickness increased in post operative 4 month compared to preoperative measurements (p <0.001). The mean change in conjunctivalscleral thickness was 38.7±26.2 μm in the resection group, 60.8 ±27.2 μm in plication group. The mean change in muscle thickness was 127.7+101.8 μm in the resection group and 186.5+74.2 μm in plication group. No significant dilerences were observed for either parameter, respectively (p=0.067 and p=0.23). Conclusion: AS-OCT is a non-invasive and rapid imaging technique that allows evaluation of structural changes following strabismus surgery. In this study, no significant dilerences were found between plication and extraocular muscle resection, two commonly used strengthening procedures in strabismus surgery, in their elects on postoperative conjunctival-scleral and muscle thickness.</p>