Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiography

Objective: To investigate the vascular characteristic changes in the macular retina and choriocapillaris, as well as the choroidal vascularization of eyes with different degrees of myopia in juveniles using Swept-source Optical Coherence Tomography (SS-OCT), aiming to understand the pathophysiologic...

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Main Authors: Linbo He, Qing Wang, Ziyang Li, Libing Song, Bo Liu, Yuli Yang
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Photodiagnosis and Photodynamic Therapy
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Online Access:http://www.sciencedirect.com/science/article/pii/S1572100025002066
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author Linbo He
Qing Wang
Ziyang Li
Libing Song
Bo Liu
Yuli Yang
author_facet Linbo He
Qing Wang
Ziyang Li
Libing Song
Bo Liu
Yuli Yang
author_sort Linbo He
collection DOAJ
description Objective: To investigate the vascular characteristic changes in the macular retina and choriocapillaris, as well as the choroidal vascularization of eyes with different degrees of myopia in juveniles using Swept-source Optical Coherence Tomography (SS-OCT), aiming to understand the pathophysiological characteristics of myopic eyes further. Methods: We conducted a retrospective case-control study involving 103 patients (198 eyes) aged 6–17 years who had undergone SS-OCT examination. Based on equivalent spherical power, they were divided into four groups: emmetropia group, low myopia group, moderate myopia group, and high myopia group. The density of superficial capillary plexuses (SCP), choriocapillaris (CC), choroid vessel (CV)layers, and subfoveal choroidal thickness (SFCT) in the macular area were measured using SS-OCT. Multivariate regression analysis was employed to determine the ocular and demographic factors associated with retinal and choroidal blood flow indicators. Results: In the temporal parafoveal area, the superficial capillary plexus (SCP) density was significantly lower in the moderate myopia group compared to the low myopia group (47.27 ± 2.21 vs. 48.51 ± 1.8, p = 0.002). Conversely, subfoveal choroidal vessel (CV) density was substantially higher in highly myopic eyes than in emmetropic eyes (56.98± 3.65 vs. 53.70 ± 4.31, p = 0.023). The multiple linear regression analysis showed that in the area under the fovea, thinner choroidal thickness is associated with higher choroidal vessel density. Specifically, as choroidal thickness decreases, the density of choroidal vessels increases (p = 0.024). Conclusions: For juveniles, with the progression of myopia, the density of retinal superficial blood vessels and choroidal capillaries remains at a relatively stable level, while the choroidal vessel density under the fovea gradually increases. The main cause of changes in choroidal vessel density is the thickness of choroid under the fovea.
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spelling doaj-art-1ca283dc786b41a5a8d4eb5074da2d5e2025-08-20T03:02:07ZengElsevierPhotodiagnosis and Photodynamic Therapy1572-10002025-08-015410467410.1016/j.pdpdt.2025.104674Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiographyLinbo He0Qing Wang1Ziyang Li2Libing Song3Bo Liu4Yuli Yang5Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China; Key Lab of Visual Damage and Regeneration, Chongqing, PR ChinaSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China; Key Lab of Visual Damage and Regeneration, Chongqing, PR ChinaSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China; Key Lab of Visual Damage and Regeneration, Chongqing, PR ChinaSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China; Key Lab of Visual Damage and Regeneration, Chongqing, PR ChinaSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China; Key Lab of Visual Damage and Regeneration, Chongqing, PR ChinaSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China; Key Lab of Visual Damage and Regeneration, Chongqing, PR ChinaObjective: To investigate the vascular characteristic changes in the macular retina and choriocapillaris, as well as the choroidal vascularization of eyes with different degrees of myopia in juveniles using Swept-source Optical Coherence Tomography (SS-OCT), aiming to understand the pathophysiological characteristics of myopic eyes further. Methods: We conducted a retrospective case-control study involving 103 patients (198 eyes) aged 6–17 years who had undergone SS-OCT examination. Based on equivalent spherical power, they were divided into four groups: emmetropia group, low myopia group, moderate myopia group, and high myopia group. The density of superficial capillary plexuses (SCP), choriocapillaris (CC), choroid vessel (CV)layers, and subfoveal choroidal thickness (SFCT) in the macular area were measured using SS-OCT. Multivariate regression analysis was employed to determine the ocular and demographic factors associated with retinal and choroidal blood flow indicators. Results: In the temporal parafoveal area, the superficial capillary plexus (SCP) density was significantly lower in the moderate myopia group compared to the low myopia group (47.27 ± 2.21 vs. 48.51 ± 1.8, p = 0.002). Conversely, subfoveal choroidal vessel (CV) density was substantially higher in highly myopic eyes than in emmetropic eyes (56.98± 3.65 vs. 53.70 ± 4.31, p = 0.023). The multiple linear regression analysis showed that in the area under the fovea, thinner choroidal thickness is associated with higher choroidal vessel density. Specifically, as choroidal thickness decreases, the density of choroidal vessels increases (p = 0.024). Conclusions: For juveniles, with the progression of myopia, the density of retinal superficial blood vessels and choroidal capillaries remains at a relatively stable level, while the choroidal vessel density under the fovea gradually increases. The main cause of changes in choroidal vessel density is the thickness of choroid under the fovea.http://www.sciencedirect.com/science/article/pii/S1572100025002066SS-OCTOCTAMyopiaChoroidal bloodSwept-source Optical Coherence Tomography
spellingShingle Linbo He
Qing Wang
Ziyang Li
Libing Song
Bo Liu
Yuli Yang
Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiography
Photodiagnosis and Photodynamic Therapy
SS-OCT
OCTA
Myopia
Choroidal blood
Swept-source Optical Coherence Tomography
title Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiography
title_full Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiography
title_fullStr Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiography
title_full_unstemmed Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiography
title_short Exploration of choroidal vascular changes in juveniles with different degrees of myopia: The application of swept-source optical coherence tomography angiography
title_sort exploration of choroidal vascular changes in juveniles with different degrees of myopia the application of swept source optical coherence tomography angiography
topic SS-OCT
OCTA
Myopia
Choroidal blood
Swept-source Optical Coherence Tomography
url http://www.sciencedirect.com/science/article/pii/S1572100025002066
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