Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis
Background: This study aims to provide an estimated dataset of lens zonule balance tension (LZBT) measurements in cataractous lenses among Chinese patients and to conduct a statistical analysis of anterior segment parameters. Methods: This is a cross-sectional study. We included a total of 833 eyes...
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Elsevier
2024-10-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024147433 |
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| author | Lujie Zhang Kai Wen Ming Liu Jie Wang Yifang Huang Yufeng Zhang Ruihua Wei Jing Sun |
| author_facet | Lujie Zhang Kai Wen Ming Liu Jie Wang Yifang Huang Yufeng Zhang Ruihua Wei Jing Sun |
| author_sort | Lujie Zhang |
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| description | Background: This study aims to provide an estimated dataset of lens zonule balance tension (LZBT) measurements in cataractous lenses among Chinese patients and to conduct a statistical analysis of anterior segment parameters. Methods: This is a cross-sectional study. We included a total of 833 eyes from 833 Chinese participants aged 23–91 years who underwent cataract surgery. Anterior segment parameters were measured using swept-source anterior segment optical coherence tomography (SS-AS OCT) to calculate lens gravity (LG) and crystalline lens volume (VOL). Axial length (AL) was measured using IOL-Master 700. LZBT was calculated using force decomposition and synthesis methods. Results: The mean LZBT in the horizontal direction was 8.48E-05 ± 3.23E-05 N across all eyes. The LZBT in the subtemporal-supraspinal and supraspinal-temporal directions was 2 times greater than in the vertical direction. The balanced force on the suspensory ligament in the horizontal direction was twice as strong as in the vertical direction. Additionally, anterior segment parameters such as lens equivalent diameter (LE-dia), radius of the anterior lens surface curvature (RAL), radius of the posterior lens surface curvature (RPL), anterior chamber depth (ACD), iris area, iris volume, and iris thickness showed positive correlations with AL. Conclusions: Accounting for gravitational effects, we concluded that zonule force is asymmetrically distributed. Importantly, this study establishes the normal range of LZBT across different meridians using force synthesis and decomposition, offering new insights and feasibility for studying suspensory ligament biomechanics. |
| format | Article |
| id | doaj-art-fe75182cd10c407994cdf2557cbaa03d |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Elsevier |
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| spelling | doaj-art-fe75182cd10c407994cdf2557cbaa03d2024-11-12T05:19:11ZengElsevierHeliyon2405-84402024-10-011020e38712Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysisLujie Zhang0Kai Wen1Ming Liu2Jie Wang3Yifang Huang4Yufeng Zhang5Ruihua Wei6Jing Sun7Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, China; Tianjin Children's Hospital, Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, China; Corresponding author. No. 251, Fukang Road, Nankai District, Tianjin, 300110, China.Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, China; Corresponding author. No. 251, Fukang Road, Nankai District, Tianjin, 300110, China .Background: This study aims to provide an estimated dataset of lens zonule balance tension (LZBT) measurements in cataractous lenses among Chinese patients and to conduct a statistical analysis of anterior segment parameters. Methods: This is a cross-sectional study. We included a total of 833 eyes from 833 Chinese participants aged 23–91 years who underwent cataract surgery. Anterior segment parameters were measured using swept-source anterior segment optical coherence tomography (SS-AS OCT) to calculate lens gravity (LG) and crystalline lens volume (VOL). Axial length (AL) was measured using IOL-Master 700. LZBT was calculated using force decomposition and synthesis methods. Results: The mean LZBT in the horizontal direction was 8.48E-05 ± 3.23E-05 N across all eyes. The LZBT in the subtemporal-supraspinal and supraspinal-temporal directions was 2 times greater than in the vertical direction. The balanced force on the suspensory ligament in the horizontal direction was twice as strong as in the vertical direction. Additionally, anterior segment parameters such as lens equivalent diameter (LE-dia), radius of the anterior lens surface curvature (RAL), radius of the posterior lens surface curvature (RPL), anterior chamber depth (ACD), iris area, iris volume, and iris thickness showed positive correlations with AL. Conclusions: Accounting for gravitational effects, we concluded that zonule force is asymmetrically distributed. Importantly, this study establishes the normal range of LZBT across different meridians using force synthesis and decomposition, offering new insights and feasibility for studying suspensory ligament biomechanics.http://www.sciencedirect.com/science/article/pii/S2405844024147433Lens zonules balance tensionLens gravityLens volume |
| spellingShingle | Lujie Zhang Kai Wen Ming Liu Jie Wang Yifang Huang Yufeng Zhang Ruihua Wei Jing Sun Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis Heliyon Lens zonules balance tension Lens gravity Lens volume |
| title | Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis |
| title_full | Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis |
| title_fullStr | Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis |
| title_full_unstemmed | Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis |
| title_short | Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis |
| title_sort | unveiling the mysteries of the chinese lens zonule balance tension a statistical analysis |
| topic | Lens zonules balance tension Lens gravity Lens volume |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024147433 |
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