Ma Wei, Zuo Chengguo, Chen Weirong, Zheng Shaoyang, Xu Jiangang, Gong Ruowen, Mijiti Maierhaba, Alifu Kaidiliya, Ding Lin, Lin Mingkai
State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China.
Eye Institute, Eye and ENT Hospital, College of Medicine, Fudan University, Shanghai, China.
J Ophthalmol. 2020 Aug 31;2020:5063789. doi: 10.1155/2020/5063789. eCollection 2020.
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. . People's Hospital of Xinjiang Uygur Autonomous Region.
Clinical-based cross-sectional study.
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.
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, < 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 ( < 0.001).
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.
调查中国西部白内障手术患者术前角膜散光的人口统计学特征和分布情况，并与中国南部患者的这些结果进行比较和分析。新疆维吾尔自治区人民医院。
基于临床的横断面研究。
招募2012年2月至2019年8月在新疆维吾尔自治区人民医院接受白内障手术的患者。通过术前双侧部分相干干涉测量法（IOLMaster）测量术前角膜曲率数据，并记录和分析患者的人口统计学特征。
本研究纳入7065例患者的12236只眼，平均年龄为64.75±9.66岁，52.77%的患者为女性。平均眼轴长度为23.14±0.96mm。散光范围为0屈光度（D）至6.94D，平均为1.28D。53.71%的眼睛角膜散光在0.25D至1.25D之间，39.06%的眼睛角膜散光为1.25D或更高，7.23%的眼睛角膜散光小于0.25D。41.94%的患者散光为顺规（WTR），38.80%的患者散光为逆规（ATR）。平均平坦角膜曲率测量值和陡峭角膜曲率测量值分别为43.19±1.50D和44.24±1.62D。匹配后，中国西部的角膜散光为1.30±1.03D，显著高于中国南部（0.98±0.67D，P<0.001）。匹配后，中国西部WTR散光的比例为40.99%，也显著高于中国南部的比例（26.46%）（P<0.001）。
中国西部白内障手术患者术前角膜散光主要在0.25D至1.25D之间。与中国南部患者相比，中国西部患者更年轻，散光程度更高，WTR散光比例更高。
