Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity

PurposeThe study aimed to compare interocular differences in choroidal thickness and circulation between the paired eyes of anisomyopic adults and to further investigate the potential connection between the choroid and myopia severity.MethodsA total of 120 eyes of 60 anisomyopic adults were included...

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Main Authors: Chong Tang, Fanfan Huang, Rong Hu, Yan Ji, Yu Gao, Kai Shi, Yuanyuan Wu, Wenjuan Wan
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-07-01
Series:Frontiers in Medicine
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Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2025.1641704/full
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author Chong Tang
Fanfan Huang
Rong Hu
Yan Ji
Yu Gao
Kai Shi
Yuanyuan Wu
Wenjuan Wan
author_facet Chong Tang
Fanfan Huang
Rong Hu
Yan Ji
Yu Gao
Kai Shi
Yuanyuan Wu
Wenjuan Wan
author_sort Chong Tang
collection DOAJ
description PurposeThe study aimed to compare interocular differences in choroidal thickness and circulation between the paired eyes of anisomyopic adults and to further investigate the potential connection between the choroid and myopia severity.MethodsA total of 120 eyes of 60 anisomyopic adults were included in this observational cross-sectional study. All patients underwent detailed ocular examinations, including spherical equivalent refraction (SER), axial length (AL), and other biometric parameters. Mean choroidal thickness (MCT), choriocapillaris blood flow area (CBFA), choroidal vessel volume (CVV), and choroidal vessel index (CVI) were measured over a 6 mm x 6 mm macular area using swept-source optical coherence tomography (SS-OCTA). Interocular differences in the abovementioned measurements between the paired eyes of the anisomyopic individuals were analyzed.ResultsThe mean SER was −5.98 ± 1.72 diopters (D) in the more myopic eyes and −3.38 ± 1.71 D in the less myopic eyes, while the mean interocular difference in SER was −2.60 ± 1.17 D. The more myopic eyes had lower values of MCT, CBFA, CVV, and CVI than the relatively less myopic fellow eyes (all p < 0.01). The interocular difference in SER was positively correlated with that in MCT, CVV, and CVI (all p < 0.05), and the interocular difference in AL was negatively correlated with that in MCT, CVV, and CVI (all p < 0.05). The multiple linear regression model with generalized estimating equations showed that the interocular difference in CVV was significantly associated with the interocular difference in SER (p < 0.05).ConclusionChoroidal thickness and circulation were found to be reduced in the more myopic eyes of anisomyopic adults. We observed that the greater the interocular difference in SER, the lower the choroidal thickness and circulation, indicating that the choroid is impaired in individuals with myopia and is more likely to be compromised with severe myopia.
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spelling doaj-art-e524f1fbd8aa469faeef88484379c9d62025-08-20T03:51:19ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2025-07-011210.3389/fmed.2025.16417041641704Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severityChong TangFanfan HuangRong HuYan JiYu GaoKai ShiYuanyuan WuWenjuan WanPurposeThe study aimed to compare interocular differences in choroidal thickness and circulation between the paired eyes of anisomyopic adults and to further investigate the potential connection between the choroid and myopia severity.MethodsA total of 120 eyes of 60 anisomyopic adults were included in this observational cross-sectional study. All patients underwent detailed ocular examinations, including spherical equivalent refraction (SER), axial length (AL), and other biometric parameters. Mean choroidal thickness (MCT), choriocapillaris blood flow area (CBFA), choroidal vessel volume (CVV), and choroidal vessel index (CVI) were measured over a 6 mm x 6 mm macular area using swept-source optical coherence tomography (SS-OCTA). Interocular differences in the abovementioned measurements between the paired eyes of the anisomyopic individuals were analyzed.ResultsThe mean SER was −5.98 ± 1.72 diopters (D) in the more myopic eyes and −3.38 ± 1.71 D in the less myopic eyes, while the mean interocular difference in SER was −2.60 ± 1.17 D. The more myopic eyes had lower values of MCT, CBFA, CVV, and CVI than the relatively less myopic fellow eyes (all p < 0.01). The interocular difference in SER was positively correlated with that in MCT, CVV, and CVI (all p < 0.05), and the interocular difference in AL was negatively correlated with that in MCT, CVV, and CVI (all p < 0.05). The multiple linear regression model with generalized estimating equations showed that the interocular difference in CVV was significantly associated with the interocular difference in SER (p < 0.05).ConclusionChoroidal thickness and circulation were found to be reduced in the more myopic eyes of anisomyopic adults. We observed that the greater the interocular difference in SER, the lower the choroidal thickness and circulation, indicating that the choroid is impaired in individuals with myopia and is more likely to be compromised with severe myopia.https://www.frontiersin.org/articles/10.3389/fmed.2025.1641704/fullchoroidal thicknesschoroidal circulationchoriocapillarismyopiaanisomyopia
spellingShingle Chong Tang
Fanfan Huang
Rong Hu
Yan Ji
Yu Gao
Kai Shi
Yuanyuan Wu
Wenjuan Wan
Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity
Frontiers in Medicine
choroidal thickness
choroidal circulation
choriocapillaris
myopia
anisomyopia
title Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity
title_full Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity
title_fullStr Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity
title_full_unstemmed Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity
title_short Interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity
title_sort interocular differences in choroidal thickness and circulation in anisomyopic adults and their association with myopia severity
topic choroidal thickness
choroidal circulation
choriocapillaris
myopia
anisomyopia
url https://www.frontiersin.org/articles/10.3389/fmed.2025.1641704/full
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