The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic Patients
PurposeWe aimed to investigate the distribution of ocular residual astigmatism (ORA) and its associations with age, gender, manifest refraction, and other ocular indicators in Chinese patients with myopia.DesignThis is a multi-center retrospective cross-sectional study.MethodThe study included 7,893...
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| Format: | Article |
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Medicine |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmed.2022.763833/full |
| _version_ | 1818006280941338624 |
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| author | Changting Tang Changting Tang Changting Tang Zijing Du Zijing Du Guanrong Wu Guanrong Wu Xuanyun Tan Siwen Zang Honghua Yu Honghua Yu Yijun Hu Yijun Hu Yijun Hu |
| author_facet | Changting Tang Changting Tang Changting Tang Zijing Du Zijing Du Guanrong Wu Guanrong Wu Xuanyun Tan Siwen Zang Honghua Yu Honghua Yu Yijun Hu Yijun Hu Yijun Hu |
| author_sort | Changting Tang |
| collection | DOAJ |
| description | PurposeWe aimed to investigate the distribution of ocular residual astigmatism (ORA) and its associations with age, gender, manifest refraction, and other ocular indicators in Chinese patients with myopia.DesignThis is a multi-center retrospective cross-sectional study.MethodThe study included 7,893 patients with myopia (7,893 eyes) aged 18–40 years from five ophthalmic centers. Anterior segment biometrics of the eyes were collected from the Pentacam. ORA and its summated vector mean were calculated using Alpins vector analysis. Compensation factor (CF) was used to evaluate the relation between ORA and corneal astigmatism. ORA in different age, gender, and refraction groups was compared. The Spearman correlation was adopted to reveal multiple ocular indicators associated with ORA, which were integrated into a multiple linear regression model to predict ORA.ResultsDistribution of ORA was slightly positively skewed (Skewness= 2.111, Kurtosis = 19.660, KS P < 0.0001). Mean ORA was 0.74 ± 0.39 D (95% normal range: 0.14–1.54 D). Among all the subjects, 22.4% of the eyes had an ORA magnitude of 1.0 D or more. Undercompensation or full-compensation of anterior corneal astigmatism (ACA) by ORA prevailed in both J0 (76.99%) and J45 (58.48%). Women had higher ORA power than men (0.77 ± 0.36 D vs. 0.73 ± 0.41 D, P < 0.0001). Participants with less negative spherical equivalent (SE) or higher manifest astigmatism (MA) also had higher ORA (all P < 0.0001). ORA was significantly correlated with ACA (r = 0.405) and posterior corneal astigmatism (PCA, r = 0.356). The multivariate logistic regression analysis showed strong predictability of ORA magnitude >1.0 D using anterior segment parameters (area under the receiver operating characteristic curve: 0.739).ConclusionORA is present in Chinese adults with myopia and is affected by multiple ocular factors. Our findings may provide valuable information about ORA distribution in candidates for refractive surgery, helping optimize the outcome of astigmatism correction. |
| first_indexed | 2024-04-14T04:59:56Z |
| format | Article |
| id | doaj.art-a7651273fb2f4c36852599262a43d052 |
| institution | Directory Open Access Journal |
| issn | 2296-858X |
| language | English |
| last_indexed | 2024-04-14T04:59:56Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Medicine |
| spelling | doaj.art-a7651273fb2f4c36852599262a43d0522022-12-22T02:11:01ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2022-05-01910.3389/fmed.2022.763833763833The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic PatientsChangting Tang0Changting Tang1Changting Tang2Zijing Du3Zijing Du4Guanrong Wu5Guanrong Wu6Xuanyun Tan7Siwen Zang8Honghua Yu9Honghua Yu10Yijun Hu11Yijun Hu12Yijun Hu13Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, ChinaThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, ChinaAffiliated Hospital of Guilin Medical University, Guilin, ChinaGuangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, ChinaThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, ChinaGuangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, ChinaThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, ChinaAffiliated Hospital of Guilin Medical University, Guilin, ChinaGuangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, ChinaGuangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, ChinaThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, ChinaGuangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, ChinaAier Institute of Refractive Surgery, Refractive Surgery Center, Guangzhou Aier Eye Hospital, Guangzhou, ChinaAier School of Ophthalmology, Central South University, Changsha, ChinaPurposeWe aimed to investigate the distribution of ocular residual astigmatism (ORA) and its associations with age, gender, manifest refraction, and other ocular indicators in Chinese patients with myopia.DesignThis is a multi-center retrospective cross-sectional study.MethodThe study included 7,893 patients with myopia (7,893 eyes) aged 18–40 years from five ophthalmic centers. Anterior segment biometrics of the eyes were collected from the Pentacam. ORA and its summated vector mean were calculated using Alpins vector analysis. Compensation factor (CF) was used to evaluate the relation between ORA and corneal astigmatism. ORA in different age, gender, and refraction groups was compared. The Spearman correlation was adopted to reveal multiple ocular indicators associated with ORA, which were integrated into a multiple linear regression model to predict ORA.ResultsDistribution of ORA was slightly positively skewed (Skewness= 2.111, Kurtosis = 19.660, KS P < 0.0001). Mean ORA was 0.74 ± 0.39 D (95% normal range: 0.14–1.54 D). Among all the subjects, 22.4% of the eyes had an ORA magnitude of 1.0 D or more. Undercompensation or full-compensation of anterior corneal astigmatism (ACA) by ORA prevailed in both J0 (76.99%) and J45 (58.48%). Women had higher ORA power than men (0.77 ± 0.36 D vs. 0.73 ± 0.41 D, P < 0.0001). Participants with less negative spherical equivalent (SE) or higher manifest astigmatism (MA) also had higher ORA (all P < 0.0001). ORA was significantly correlated with ACA (r = 0.405) and posterior corneal astigmatism (PCA, r = 0.356). The multivariate logistic regression analysis showed strong predictability of ORA magnitude >1.0 D using anterior segment parameters (area under the receiver operating characteristic curve: 0.739).ConclusionORA is present in Chinese adults with myopia and is affected by multiple ocular factors. Our findings may provide valuable information about ORA distribution in candidates for refractive surgery, helping optimize the outcome of astigmatism correction.https://www.frontiersin.org/articles/10.3389/fmed.2022.763833/fullocular residual astigmatismmanifest astigmatismmyopiarefractive surgeryastigmatism correction |
| spellingShingle | Changting Tang Changting Tang Changting Tang Zijing Du Zijing Du Guanrong Wu Guanrong Wu Xuanyun Tan Siwen Zang Honghua Yu Honghua Yu Yijun Hu Yijun Hu Yijun Hu The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic Patients Frontiers in Medicine ocular residual astigmatism manifest astigmatism myopia refractive surgery astigmatism correction |
| title | The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic Patients |
| title_full | The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic Patients |
| title_fullStr | The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic Patients |
| title_full_unstemmed | The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic Patients |
| title_short | The Distribution Pattern of Ocular Residual Astigmatism in Chinese Myopic Patients |
| title_sort | distribution pattern of ocular residual astigmatism in chinese myopic patients |
| topic | ocular residual astigmatism manifest astigmatism myopia refractive surgery astigmatism correction |
| url | https://www.frontiersin.org/articles/10.3389/fmed.2022.763833/full |
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