Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China
Purpose. To investigate the demographics and distribution of corneal astigmatism before cataract surgery in patients from western China and to compare and analyze these findings with those of patients in southern China. Setting. People’s Hospital of Xinjiang Uygur Autonomous Region. Design. Clinical...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2020/5063789 |
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| author | Wei Ma Chengguo Zuo Weirong Chen Shaoyang Zheng Jiangang Xu Ruowen Gong Maierhaba Mijiti Kaidiliya Alifu Lin Ding Mingkai Lin |
| author_facet | Wei Ma Chengguo Zuo Weirong Chen Shaoyang Zheng Jiangang Xu Ruowen Gong Maierhaba Mijiti Kaidiliya Alifu Lin Ding Mingkai Lin |
| author_sort | Wei Ma |
| collection | DOAJ |
| description | Purpose. To investigate the demographics and distribution of corneal astigmatism before cataract surgery in patients from western China and to compare and analyze these findings with those of patients in southern China. Setting. People’s Hospital of Xinjiang Uygur Autonomous Region. Design. Clinical-based cross-sectional study. Methods. Patients undergoing cataract surgery in the People’s Hospital of Xinjiang Uygur Autonomous Region from February 2012 to August 2019 were recruited. Preoperative keratometric data measured by performing preoperative bilateral partial coherence interferometry (IOLMaster), and patient demographics were recorded and analyzed. Results. This study comprised 12,236 eyes of 7065 patients with a mean age of 64.75 ± 9.66 years, and 52.77% of the patients were female. The mean axial length was 23.14 ± 0.96 mm. Astigmatism ranged from 0 diopters (D) to 6.94 D, with a mean of 1.28 D. Corneal astigmatism was between 0.25 D and 1.25 D in 53.71% of eyes, 1.25 D or higher in 39.06% eyes, and less than 0.25 D in 7.23% of eyes. Astigmatism was with the rule (WTR) in 41.94% of the patients and against the rule (ATR) in 38.80% of patients. The mean flat and steep keratometry measurement was 43.19 ± 1.50 D and 44.24 ± 1.62 D, respectively. After matching, corneal astigmatism in western China was 1.30 ± 1.03 D, and it was significantly higher than that in southern China (0.98 ± 0.67 D, P<0.001). After matching, the proportion of WTR astigmatism was 40.99% in western China, which was also significantly higher than the proportion (26.46%) in southern China (P<0.001). Conclusion. Corneal astigmatism in patients before cataract surgery in western China was mainly between 0.25 D and 1.25 D. Compared with patients in southern China, patients in western China are younger, have a much higher degree of astigmatism, and have a higher proportion of WTR astigmatism. |
| format | Article |
| id | doaj-art-a053962072d747b0990e75699bc9f43f |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-a053962072d747b0990e75699bc9f43f2025-02-03T01:06:23ZengWileyJournal of Ophthalmology2090-004X2090-00582020-01-01202010.1155/2020/50637895063789Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western ChinaWei Ma0Chengguo Zuo1Weirong Chen2Shaoyang Zheng3Jiangang Xu4Ruowen Gong5Maierhaba Mijiti6Kaidiliya Alifu7Lin Ding8Mingkai Lin9State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, ChinaEye Institute, Eye and ENT Hospital, College of Medicine, Fudan University, Shanghai, ChinaPeople’s Hospital of Xinjiang Urumqi Autonomous Region, Urumqi, ChinaPeople’s Hospital of Xinjiang Urumqi Autonomous Region, Urumqi, ChinaPeople’s Hospital of Xinjiang Urumqi Autonomous Region, Urumqi, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, ChinaPurpose. To investigate the demographics and distribution of corneal astigmatism before cataract surgery in patients from western China and to compare and analyze these findings with those of patients in southern China. Setting. People’s Hospital of Xinjiang Uygur Autonomous Region. Design. Clinical-based cross-sectional study. Methods. Patients undergoing cataract surgery in the People’s Hospital of Xinjiang Uygur Autonomous Region from February 2012 to August 2019 were recruited. Preoperative keratometric data measured by performing preoperative bilateral partial coherence interferometry (IOLMaster), and patient demographics were recorded and analyzed. Results. This study comprised 12,236 eyes of 7065 patients with a mean age of 64.75 ± 9.66 years, and 52.77% of the patients were female. The mean axial length was 23.14 ± 0.96 mm. Astigmatism ranged from 0 diopters (D) to 6.94 D, with a mean of 1.28 D. Corneal astigmatism was between 0.25 D and 1.25 D in 53.71% of eyes, 1.25 D or higher in 39.06% eyes, and less than 0.25 D in 7.23% of eyes. Astigmatism was with the rule (WTR) in 41.94% of the patients and against the rule (ATR) in 38.80% of patients. The mean flat and steep keratometry measurement was 43.19 ± 1.50 D and 44.24 ± 1.62 D, respectively. After matching, corneal astigmatism in western China was 1.30 ± 1.03 D, and it was significantly higher than that in southern China (0.98 ± 0.67 D, P<0.001). After matching, the proportion of WTR astigmatism was 40.99% in western China, which was also significantly higher than the proportion (26.46%) in southern China (P<0.001). Conclusion. Corneal astigmatism in patients before cataract surgery in western China was mainly between 0.25 D and 1.25 D. Compared with patients in southern China, patients in western China are younger, have a much higher degree of astigmatism, and have a higher proportion of WTR astigmatism.http://dx.doi.org/10.1155/2020/5063789 |
| spellingShingle | Wei Ma Chengguo Zuo Weirong Chen Shaoyang Zheng Jiangang Xu Ruowen Gong Maierhaba Mijiti Kaidiliya Alifu Lin Ding Mingkai Lin Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China Journal of Ophthalmology |
| title | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China |
| title_full | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China |
| title_fullStr | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China |
| title_full_unstemmed | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China |
| title_short | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China |
| title_sort | prevalence of corneal astigmatism in patients before cataract surgery in western china |
| url | http://dx.doi.org/10.1155/2020/5063789 |
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