Paraxial Schematic Eye Models for 7-and 14-Year-Old Chinese Children
Paraxial Schematic Eye Models for 7-and 14-Year-Old Chinese Children
复制标题
DOI：
10.1167/iovs.15-16428
复制
发表时间：
2015-06-01
影响因子：
4.4
通讯作者：
Atchison, David A.
中科院分区：
文献类型：
--
作者：
Li, Shi-Ming;Wang, Ningli;Atchison, David A.
目的。根据安阳儿童眼科研究中7岁和14岁中国儿童的数据，开发不同年龄和性别的三面近轴示意图。方法。开发了六组近轴示意图，包括7岁眼睛、7岁男性眼睛、7岁女性眼睛、14岁眼睛、14岁男性眼睛和14岁女性眼睛。开发了屈光相关眼模型和正视眼模型，前者使用眼部参数对屈光的线性依赖性。结果。共有 2059 名一年级儿童（男孩占 58%）和 1536 名八年级儿童（男孩占 49%），平均年龄分别为 7.1 +/- 0.4 岁和 13.7 +/- 0.5 岁。随着年龄的增长，这些示意性眼睛的变化是前房深度增加、晶状体厚度减少、玻璃体室深度增加、眼轴长度增加和晶状体等效光焦度降低。男性示意图眼比女性示意图眼具有更深的前房深度、更长的玻璃体房深度、更长的眼轴和更低的晶状体等效光焦度。屈光正增加的示意图眼的变化是前房深度减小、晶状体厚度增加、玻璃体室深度减小、眼轴长度减小、角膜曲率半径增大和晶状体屈光力增大。一般来说，正视眼示意图具有与屈光相关示意图眼的回归拟合所产生的生物特征参数类似的生物特征参数。结论。中国儿童的近轴眼图可能有助于近视研究，并有助于与相同或不同种族背景、生活在不同地方的其他儿童进行比较。
PURPOSE. To develop three-surface paraxial schematic eyes with different ages and sexes based on data for 7- and 14-year-old Chinese children from the Anyang Childhood Eye Study.METHODS. Six sets of paraxial schematic eyes, including 7-year-old eyes, 7-year-old male eyes, 7-year-old female eyes, 14-year-old eyes, 14-year-old male eyes, and 14-year-old female eyes, were developed. Both refraction-dependent and emmetropic eye models were developed, with the former using linear dependence of ocular parameters on refraction.RESULTS. A total of 2059 grade 1 children (boys 58%) and 1536 grade 8 children (boys 49%) were included, with mean age of 7.1 +/- 0.4 and 13.7 +/- 0.5 years, respectively. Changes in these schematic eyes with aging are increased anterior chamber depth, decreased lens thickness, increased vitreous chamber depth, increased axial length, and decreased lens equivalent power. Male schematic eyes have deeper anterior chamber depth, longer vitreous chamber depth, longer axial length, and lower lens equivalent power than female schematic eyes. Changes in the schematic eyes with positive increase in refraction are decreased anterior chamber depth, increased lens thickness, decreased vitreous chamber depth, decreased axial length, increased corneal radius of curvature, and increased lens power. In general, the emmetropic schematic eyes have biometric parameters similar to those arising from regression fits for the refraction-dependent schematic eyes.CONCLUSIONS. The paraxial schematic eyes of Chinese children may be useful for myopia research and for facilitating comparison with other children with the same or different racial backgrounds and living in different places.