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<p>To evaluate the prevalence of high myopia in Chinese cataract surgery candidates and analyse their biometric characteristics, we conducted a 10-year retrospective consecutive case series of 17,325 cataract patients (22,479 eyes) classified by axial length (AL) into a high myopia group (defined as an AL ≥ 26.00&#xa0;mm) and a non-high myopia group. A total of 2943 eyes (13.1%) had high myopia, with the highest prevalence of high myopia (41.2%) in patients aged 40–49 years. In the high myopia group, the mean age was 59.5 ± 12.6 years, younger than the non-high myopia group (68.9 ± 11.0 years, <i>P</i> &lt; 0.001). The AL, corneal diameter, anterior chamber depth, and corneal astigmatism (CA) were all greater in the high myopia group than in the non-high myopia group (<i>P</i> &lt; 0.001 for all). In the high myopia group, 12.7% of the eyes had flat corneas, and 67.4% of the eyes had moderate to high CA, which were higher than the proportions in the non-high myopia group (<i>P</i> &lt; 0.001 for both). CA was positively correlated with age in the two groups (<i>r</i> = 0.165 and 0.274, respectively; <i>P</i> &lt; 0.001 for both) after the age of 50. Fully understanding these characteristics may help inform public health guidelines and cataract surgery decisions for high myopia patients.</p>

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A 10-year retrospective study on the prevalence and biometric characteristics of high myopia in Chinese cataract surgery candidates

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  • 发表日期：

    2025年7月2日

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  • Yehui Tan,
  • Yi Shao,
  • Liangping Liu,
  • Zhonggang Pei,
  • Mengying Peng,
  • Yuanyuan Wu,
  • Yifang Xu,
  • Xuan Zhou,
  • Xiaoyu Wang

摘要

To evaluate the prevalence of high myopia in Chinese cataract surgery candidates and analyse their biometric characteristics, we conducted a 10-year retrospective consecutive case series of 17,325 cataract patients (22,479 eyes) classified by axial length (AL) into a high myopia group (defined as an AL ≥ 26.00 mm) and a non-high myopia group. A total of 2943 eyes (13.1%) had high myopia, with the highest prevalence of high myopia (41.2%) in patients aged 40–49 years. In the high myopia group, the mean age was 59.5 ± 12.6 years, younger than the non-high myopia group (68.9 ± 11.0 years, P < 0.001). The AL, corneal diameter, anterior chamber depth, and corneal astigmatism (CA) were all greater in the high myopia group than in the non-high myopia group (P < 0.001 for all). In the high myopia group, 12.7% of the eyes had flat corneas, and 67.4% of the eyes had moderate to high CA, which were higher than the proportions in the non-high myopia group (P < 0.001 for both). CA was positively correlated with age in the two groups (r = 0.165 and 0.274, respectively; P < 0.001 for both) after the age of 50. Fully understanding these characteristics may help inform public health guidelines and cataract surgery decisions for high myopia patients.