Bian Xiaoyan, Guo Yuxia, Guo Shixuan, Zhang Song, Zhang Guisen, Liu Lei, Yang Yajun, Liu Jun
Department of Ocular Surface, Baotou Chaoju Eye Hospital, Baotou, 014060, People's Republic of China.
Department of Cataract Surgery, Ninghai Eye Hospital, Ningbo, 315615, People's Republic of China.
Int J Gen Med. 2021 Apr 27;14:1541-1546. doi: 10.2147/IJGM.S307898. eCollection 2021.
To investigate the relationships between property of the visual quality, Strehl ratio (SR) and the degree of myopia.
A total of 444 anatomically normal eyes of 222 adolescents were enrolled in the TYPE study. Based on spherical equivalent (SE), subjects were divided into four groups: emmetropia/control (SE: +0.75 to -0.75 D), low myopia (SE: -0.75 to -3.00D), moderate myopia (SE: -3.00 to 5.00D), high myopia (SE: <-5.00D). Axial length (AL) was measured. SR was attained with an OPD-III SCAN and calculated under a 3 mm pupil diameter.
The overall SR (mean ± SD) was 0.40 ± 0.08. Among all included eyes, the SR in eyes with the emmetropia, low myopia, moderate myopia and high myopia was 0.80 ± 0.11, 0.31 ± 0.04, 0.21 ± 0.11, and 0.11 ± 0.02, respectively. Furthermore, the K2 in eyes with the emmetropia, low myopia, moderate myopia and high myopia was 43.83±1.50, 43.96±1.37, 43.4±5.52, and 45.16±1.43, respectively. Significant differences were detected within the four groups in terms of SR and K2 ( < 0.001). Multiple regression analysis confirmed that AL negatively affected SR independently ( < 0.001).
Our findings provide a useful basis for the conclusion that myopia affects visual quality SR in Chinese adolescents. Besides, when performing visual quality SR, axial length must be taken into consideration, as it will influence SR.
探讨视觉质量属性、斯特列尔比（SR）与近视程度之间的关系。
222名青少年的444只解剖结构正常的眼睛纳入TYPE研究。根据等效球镜度（SE），受试者被分为四组：正视/对照组（SE：+0.75至-0.75D）、低度近视组（SE：-0.75至-3.00D）、中度近视组（SE：-3.00至-5.00D）、高度近视组（SE：<-5.00D）。测量眼轴长度（AL）。使用OPD-III SCAN获得SR，并在3mm瞳孔直径下计算。
总体SR（均值±标准差）为0.40±0.08。在所有纳入的眼睛中，正视、低度近视、中度近视和高度近视眼睛的SR分别为0.80±0.11、0.31±0.04、0.21±0.11和0.11±0.02。此外，正视、低度近视、中度近视和高度近视眼睛的K2分别为43.83±1.50、43.96±1.37、43.4±5.52和45.16±1.43。四组之间在SR和K2方面存在显著差异（<0.001）。多元回归分析证实，眼轴长度独立地对SR产生负面影响（<0.001）。
我们的研究结果为近视影响中国青少年视觉质量SR这一结论提供了有用依据。此外，在进行视觉质量SR检测时，必须考虑眼轴长度，因为它会影响SR。
