HOU Rui,CAO Zhu,HOU Zhiqiang,et al.Design of simulated eye for calibration of vision screening instrument based on eccentric photography principle[J].OPTICAL TECHNIQUE,2026,52(03):273-278.
HOU Rui,CAO Zhu,HOU Zhiqiang,et al.Design of simulated eye for calibration of vision screening instrument based on eccentric photography principle[J].OPTICAL TECHNIQUE,2026,52(03):273-278.DOI:
Design of simulated eye for calibration of vision screening instrument based on eccentric photography principle
In order to test the accuracy of the screening results of the vision screening instrument based on the principle of eccentric photography
a multi-layer simulated eye is designed based on the principle of geometric optics and human eye imaging. The simulated eye is composed of corneal aqueous humor simulation layer
crystalline lens simulation layer
vitreous simulation layer and retinal simulation layer
which is glued by the optical glass. The relative refractive index difference between the adjacent two layers is less than 1 %
and the dioptre measurement range is -7m~ + 7m
-1
and the error is within ± 0.10m
-1
.Zemax is used to perform ray tracing analysis on the simulated eye. The central field of view of the simulated eye has high optical quality
and the aberration structure is stable and symmetrical.The correlation coefficient bet
ween the simulated eye blur spot size and the human eye model is 0.97
and the aberration level is similar to that of the human eye.
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