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Changes in corneal wavefront aberrations and anterior segment parameters after horizontal rectus muscle surgeries
Aynura Sariyeva Aydamirov1, Ayna Sariyeva Ismayilov2, Duygu Topaktaş Emekli3
1Department of Ophthalmology, Alanya Alaaddin Keykubat University Training and Research Hospital, Antalya, Turkey.
Clinical & Experimental Optometry
|January 12, 2025
Summary
Horizontal rectus muscle surgery can alter corneal topography and anterior segment parameters. These changes, including axial length and corneal aberrations, occur regardless of whether one or two muscles are operated on.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Anterior Segment Analysis
Background:
- Horizontal rectus muscle surgeries can impact ocular structures.
- Corneal topography is crucial for detecting post-surgical alterations.
Purpose of the Study:
- To assess the effects of horizontal rectus muscle surgery on corneal topography.
- To evaluate changes in anterior chamber parameters and corneal wavefront aberrations post-surgery.
Main Methods:
- Prospective study involving 44 eyes undergoing horizontal rectus muscle surgery.
- Anterior segment parameters and corneal wavefront aberrations analyzed using Pentacam.
- Measurements taken pre-surgery and 3 months post-surgery.
Main Results:
- Significant increases observed in axial length, steep keratometry, anterior corneal astigmatism, and anterior chamber volume.
- Significant decrease in flat keratometry.
- Increased spherical aberration and decreased trefoil aberration noted.
Conclusions:
- Horizontal muscle surgeries induce changes in corneal topography, anterior segment, and corneal aberrations.
- The number of muscles operated on did not significantly influence the magnitude of these changes.

