Abstract：
OBJECTIVE: The current study aimed to describe the distribution of angle alpha and angle kappa offsets as well as their associated ocular biometric parameters in a large population of candidates for cataract surgery.
METHODS: This cross-sectional retrospective study included 8,119 eyes of 4,781 candidates for cataract surgery (mean age 70.7 ± 12.9 years). There were 49.9% right eyes, and 53.0% patients were females. The angles offset and ocular biometric parameters were measured by the IOLMaster 700 (Carl Zeiss Meditec, AG, Germany).
RESULTS: Patient\'s age and gender, and most of their ocular biometric measurements were similar for the right and left eyes except for pupil diameter (4.01 ± 1.18 vs. 3.92 ± 1.14 mm, respectively, P < 0.001). The angle alpha offset magnitude was similar for the right and left eyes (0.50 ± 0.20 and 0.51 ± 0.21 mm, P = 0.08), whereas the angle kappa offset magnitude was greater in the right eyes (0.37 ± 0.21 vs. 0.33 ± 0.20 mm, P < 0.001). The angle kappa offset magnitudes were greater in the right eyes compared to the left eyes for both males (0.36 ± 0.21 vs. 0.33 ± 0.21 mm, respectively, P < 0.001) and females (0.37 ± 0.20 vs. 0.34 ± 0.20 mm, respectively, P < 0.001). The offset magnitudes of both angles varied significantly according to gender, eye laterality, angle location, and biometric parameters (e.g., axial length). The offset magnitudes of both angles were positively correlated in both right and left eyes.
CONCLUSIONS: The offset magnitudes of both the angle alpha and angle kappa present significant variations according to gender, eye laterality, angle location, and biometric parameters, such as AL. These values are also population-specific.
METHODS: This cross-sectional retrospective study included 8,119 eyes of 4,781 candidates for cataract surgery (mean age 70.7 ± 12.9 years). There were 49.9% right eyes, and 53.0% patients were females. The angles offset and ocular biometric parameters were measured by the IOLMaster 700 (Carl Zeiss Meditec, AG, Germany).
RESULTS: Patient\'s age and gender, and most of their ocular biometric measurements were similar for the right and left eyes except for pupil diameter (4.01 ± 1.18 vs. 3.92 ± 1.14 mm, respectively, P < 0.001). The angle alpha offset magnitude was similar for the right and left eyes (0.50 ± 0.20 and 0.51 ± 0.21 mm, P = 0.08), whereas the angle kappa offset magnitude was greater in the right eyes (0.37 ± 0.21 vs. 0.33 ± 0.20 mm, P < 0.001). The angle kappa offset magnitudes were greater in the right eyes compared to the left eyes for both males (0.36 ± 0.21 vs. 0.33 ± 0.21 mm, respectively, P < 0.001) and females (0.37 ± 0.20 vs. 0.34 ± 0.20 mm, respectively, P < 0.001). The offset magnitudes of both angles varied significantly according to gender, eye laterality, angle location, and biometric parameters (e.g., axial length). The offset magnitudes of both angles were positively correlated in both right and left eyes.
CONCLUSIONS: The offset magnitudes of both the angle alpha and angle kappa present significant variations according to gender, eye laterality, angle location, and biometric parameters, such as AL. These values are also population-specific.
摘要：
目的：当前的研究旨在描述大量白内障手术候选人中角度α和角度κ偏移的分布及其相关的眼部生物特征参数。
方法：这项横断面回顾性研究包括4,781名白内障手术患者中的8,119只眼（平均年龄70.7±12.9岁）。有49.9％的右眼，53.0%的患者为女性。由IOLMaster700（CarlZeissMeditec，AG,德国)。
结果：患者的年龄和性别，除了瞳孔直径（4.01±1.18vs.3.92±1.14mm,分别,P<0.001)。右眼和左眼的角度α偏移幅度相似（0.50±0.20和0.51±0.21mm，P=0.08),而右眼的角度kappa偏移幅度更大(0.37±0.21vs.0.33±0.20mm,P<0.001)。与左眼相比，两个男性的右眼角度卡帕偏移幅度更大（0.36±0.21vs.0.33±0.21mm,分别,P<0.001）和女性（0.37±0.20vs.0.34±0.20mm,分别,P<0.001)。两个角度的偏移幅度根据性别而显着变化，眼睛侧向性，角度位置,和生物特征参数(例如，轴向长度)。在右眼和左眼中，两个角度的偏移幅度均呈正相关。
结论：角度alpha和角度kappa的偏移幅度根据性别而显着变化，眼睛侧向性，角度位置,和生物参数，比如AL。这些值也是人口特定的。
方法：这项横断面回顾性研究包括4,781名白内障手术患者中的8,119只眼（平均年龄70.7±12.9岁）。有49.9％的右眼，53.0%的患者为女性。由IOLMaster700（CarlZeissMeditec，AG,德国)。
结果：患者的年龄和性别，除了瞳孔直径（4.01±1.18vs.3.92±1.14mm,分别,P<0.001)。右眼和左眼的角度α偏移幅度相似（0.50±0.20和0.51±0.21mm，P=0.08),而右眼的角度kappa偏移幅度更大(0.37±0.21vs.0.33±0.20mm,P<0.001)。与左眼相比，两个男性的右眼角度卡帕偏移幅度更大（0.36±0.21vs.0.33±0.21mm,分别,P<0.001）和女性（0.37±0.20vs.0.34±0.20mm,分别,P<0.001)。两个角度的偏移幅度根据性别而显着变化，眼睛侧向性，角度位置,和生物特征参数(例如，轴向长度)。在右眼和左眼中，两个角度的偏移幅度均呈正相关。
结论：角度alpha和角度kappa的偏移幅度根据性别而显着变化，眼睛侧向性，角度位置,和生物参数，比如AL。这些值也是人口特定的。
