Analysis of Morphological and Quantitative Changes in Pathological Myopia and Perioperative Changes in Posterior Scleral Reinforcement Using Three-dimensional Magnet Resonance Imaging

Overview

Journal Front Bioeng Biotechnol

Date 2024 Jan 3

PMID 38169632

Authors

Lin Liu

Hua Rong

Di Wu

He Xu

Qing He

Bei Du

Xuejun Zhang

Ruihua Wei

Affiliations

Soon will be listed here.

Abstract

To compare the morphological and quantitative changes in pathological myopia (PM) and the perioperative changes in posterior scleral reinforcement (PSR) using three-dimensional magnetic resonance images (3D MRI). A total of 49 patients with high myopia (HM; 98 eyes), 15 with pathological myopia (PM; 19 eyes), and 10 without high myopia (NORM; 20 eyes) were recruited between September 2019 and July 2021. The patients underwent measurements of refractive error and axial length, as well as 3D MRI of the eyeball. Python was used to analyze the 3D MRI images, calculate the vitreous volume, establish a topography of the height of the eyeball posterior surface, and calculate the rate of change in height (H). For the PM group undergoing PSR, changes in vitreous volume and the highest point of the eyeball posterior surface in four quadrants (temporal, subtemporal, nasal, and subnasal) were compared before and after PSR. The vitreous volume was smaller in the NORM group compared to the HM and PM groups ( < 0.01). The PM group had a larger volume than the HM group ( < 0.01). The H for the PM group was higher than that of the NORM and HM groups ( < 0.01). After PSR in the PM group, the total vitreous volume, as well as the volume in the subnasal and supratemporal quadrants, decreased ( < 0.05). Additionally, the highest point of the eyeball's posterior surface was generally shifted to the upper nasal side. Finally, the shape and position of the scleral band after PSR were plotted. 3D MRI is capable of a quantitative description of the eyeball morphology in PM and PSR. It allows for precise calculations of changes in vitreous volume and the H of the posterior surface. It also facilitates a meticulous analysis of the specific details of the scleral band following PSR.

Citing Articles

Application of 3D MRI and SS-OCT/OCTA in Assessment of Posterior Scleral Contraction for Myopic Traction Maculopathy.

Yu D, Wu D, Li H, Rong H, He Q, Zhang X Transl Vis Sci Technol. 2025; 14(3):5.

PMID: 40052849 PMC: 11905622. DOI: 10.1167/tvst.14.3.5.

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