We previously reported that a shallow circumpapillary retinal nerve fiber layer (cpRNFL) peak angle as measured by optical coherence tomography (OCT) suggests the temporal retina is stretched around the optic disc from the papillo-macular bundle (Yamashita T et al. Investigative Ophthalmol Vis Sci 2013). The purpose of the current study was to investigate the relationship between CorvisST tonometry (CST) corneal measurements, axial length (AL) and the change in OCT-measured cpRNFL peak angle, in young healthy subjects. OCT and CST measurements were carried out in 97 eyes of 97 young healthy volunteers. The relationship between cpRNFL peak angle and 12 CST parameters, adjusted for AL, was investigated using linear modelling. The mean ± standard deviation cpRNFL peak angle of the 97 healthy volunteers was 130.6 ± 25.4 (range: 77.8 to 207.0) degrees. The optimal linear model to explain cpRNFL peak angle (chosen from 216 different models) included three CST variables related to the speed and size of energy absorption (namely, A1 time, A1 length and A2 time), in addition to AL. In eyes with longer AL and shorter energy absorption in CST measurement, temporal retina is stretched around the optic disc from the papillo-macular bundle, as suggested by a shallow cpRNFL peak angle.

译文

我们以前报道过,通过光学相干断层扫描 (OCT) 测量的浅乳头周围视网膜神经纤维层 (cpRNFL) 峰值角度表明颞视网膜从乳头-黄斑束在视盘周围拉伸 (Yamashita T等人。调查眼科Vis Sci 2013)。本研究的目的是研究年轻健康受试者中CorvisST眼压计 (CST) 角膜测量,轴向长度 (AL) 与OCT测量的cpRNFL峰值角变化之间的关系。在97名年轻健康志愿者的97只眼睛中进行了OCT和CST测量。使用线性模型研究了针对AL调整的cpRNFL峰值角与12个CST参数之间的关系。97名健康志愿者的平均   ±  标准偏差cpRNFL峰值角度为130.6   ±   25.4 (范围: 77.8 ~ 207.0) 度。解释cpRNFL峰值角的最优线性模型 (选自216个不同的模型) 除了AL之外,还包括三个与能量吸收的速度和大小 (即A1时间、A1长度和A2时间) 有关的CST变量。在CST测量中AL较长且能量吸收较短的眼睛中,颞视网膜从乳头-黄斑束在视盘周围拉伸,如浅的cpRNFL峰角所示。

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