目的是研究度量尺，视频重构和瞳孔计在测量瞳孔距离（PD）方面的差异。
The objective is to investigate difference of metric ruler, videorefactor and pupillometer in measuring pupillary distance (PD).
在屏幕上方有一个隐藏的装置，在小丹尼尔的眼睛跟随火车的运动时，跟踪他的眼睛，并且在一秒钟内，测量了他的瞳孔的直径50次。
A hidden device above the screen is tracking Daniel's eyes as they follow the train and measuring the diameter of his pupils 50 times a second.
探讨瞳孔状态对光学相干断层扫描仪（OCT3）测量视网膜神经纤维层（RNFL）厚度值的影响及其诊断青光眼的准确性。
To assess the effect of pupil size on measurement of retinal nerve fiber layer (RNFL) thickness using optical coherence tomography (OCT3) and its value on diagnosis of glaucoma.
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