Corneal tomography changes following major (6 mm) medial rectus muscle recession: a prospective cohort study using Pentacam®.

Autor:	Paraskevopoulos K; Department of Ophthalmology, Penteli General Hospital for Children, Athens.; First Ophthalmology Department, 'G. Gennimatas' Hospital, National and Kapodistrian University of Athens,Athens, Greece., Karakosta C; Department of Ophthalmology, Penteli General Hospital for Children, Athens.; First Ophthalmology Department, 'G. Gennimatas' Hospital, National and Kapodistrian University of Athens,Athens, Greece., Feretzakis G; School of Science and Technology, Hellenic Open University, Patras, Greece., Liaskou M; Department of Ophthalmology, Penteli General Hospital for Children, Athens., Kafetsouli D; Department of Hygiene and Epidemiology, University of Thessaly, Larissa, Greece., Kokolaki A; Department of Ophthalmology, Penteli General Hospital for Children, Athens., Droutsas K; First Ophthalmology Department, 'G. Gennimatas' Hospital, National and Kapodistrian University of Athens,Athens, Greece., Papakonstantinou D; First Ophthalmology Department, 'G. Gennimatas' Hospital, National and Kapodistrian University of Athens,Athens, Greece., Georgalas I; First Ophthalmology Department, 'G. Gennimatas' Hospital, National and Kapodistrian University of Athens,Athens, Greece.
Jazyk:	angličtina
Zdroj:	Strabismus [Strabismus] 2024 Mar; Vol. 32 (1), pp. 39-47. Date of Electronic Publication: 2024 Feb 04.
DOI:	10.1080/09273972.2024.2311094
Abstrakt:	Introduction: The aim of this study is to evaluate changes in corneal astigmatism, axial anterior corneal curvature, as well as changes in the anterior chamber depth and central corneal thickness, 2 months following the unilateral recession of medial rectus muscle in children. Methods: Thirty-three children with esotropia were prospectively evaluated following unilateral medial rectus muscle recession, using Pentacam®. Comparisons were made between the operated and fellow unoperated eyes, pre, and postoperatively. The assessment was made for changes in the radius of axial curvature on major meridians at 3 and 3.5 mm from the optical corneal center in the mid-peripheral zone. Astigmatism changes of the anterior and posterior corneal surface were calculated using vector analysis software (astigMATIC®). ANOVA model was used to examine the interaction between age or central corneal thickness and postoperative changes in anterior and posterior surface corneal astigmatism. Results: In the intervention group, changes in anterior and posterior corneal surface astigmatism were statistically significant, with a mean increase of 0.59Dx92 and 0.08Dx91, respectively. In the mid-peripheral corneal zone, there is an increase in the radius of anterior corneal axial curvature more evident nasally 3.5 mm from the corneal center on the horizontal meridian, with corresponding decrease superiorly and inferiorly at 3 and 3.5 mm from the corneal center on the vertical meridian. Discussion: The changes in total astigmatism of the operated eyes are mainly attributed to the anterior corneal surface. These changes are associated with flattening in the 180 meridian of the cornea, leading to a shift to "with-the-rule" astigmatism.
Databáze:	MEDLINE
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