Based on the analysis of the theoretical calculation model of axial resolution of optical coherence
tomograph for the posterior segment of the human eye, a set of testing device for measuring its axial
resolution is designed and developed. In view of a commercial ophthalmic optical coherence tomograph
in clinical use, its axial resolution is calculated to be 5.07 μm theoretically, and the actual measurement
value is 5.45 μm. The uncertainty of the detection device is evaluated and the result is (5.45±0.10) μm.
The measurement error introduced by the testing device is very small. Meanwhile, the axial resolution
measured by the testing device meets the requirements of the instrument(≤6 μm).
WANG Jingtao1, JIA Xiaohang1, PENG Jianhua1, HU Yiping1, LUO Chao2, CAI Ming2.Development of Axial Resolution Testing Device for Optical Coherence Tomograph for the Posterior Segment of the Human Eye and Measurement Uncertainty Analysis[J] Chinese Journal of Medical Instrumentation, 2020,V44(4): 315-318
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