顾客不需要做任何眼部检查就可以买有视力矫正的美瞳，也可以买没有度数的美瞳，这也增加了潜在的风险。
Customers can buy pre-determined prescription strength lenses, or simply buy lenses with no prescription, without the need for an eye exam, which adds to the potential danger.
比较点扩瞳剂托吡卡胺滴眼液时提上睑与否对其扩瞳效果的影响。
Objective: to compare the mydriasis effect of lifting up eyelid superior or not as using tropicamide eyedrop.
本测试系统是为解决某单位枪用光学瞄具出瞳直径、出瞳距离的测试而研制的。
This measuring system is specially designed to solve the diameter and distance of exit pupil of the gun optical sighting for some factory.
结论：复方托品酰胺是较大年龄(12 ~ 15岁)儿童散瞳验光的理想药物，而对16 ~18岁年龄段青少年可以直接小瞳验光。
CONCLUSION: Compound tropicamide is shown to be an ideal drug for mydriatic optometry in juvenile patients of 12-15 years old, but not necessary for patients between 16 and 18 years old.
本文对518例屈光不正患者加以检测分析，比较了不同遮盖时小瞳与散瞳检影的结果差别。
The article compares the difference of image check results between uncovered microcoria and bechterew on the basis of check—up and analysis of 518 patients who suffer from improper refraction.
由于散瞳增加了色像差等生理缺陷，所以不散瞳验光也会得到精确屈光度！
Dilation due to an increase of chromatic aberration, and other physical defects, so there is no dilation optometry will be accurate diopter!
因此，对于复杂光瞳非相干成像光学系统而言，好的光瞳分布对称性具有更好的空间成像特性。
These results demonstrate that the good symmetry of pupil distribution has a better imaging for the incoherent imaging optical system with a complex pupil.
但当传感非连通域复杂光瞳时，由于受瞳内遮挡区域的伪包裹相位值影响，路径无关型解包裹算法失效，从而导致MGS算法迭代失败。
But for non-connected pupil, the path-independent phase unwrapping inside MGS is invalid owing to fake value of the points located in obstructed areas of pupil.
两组点扩瞳剂托吡卡胺滴眼液后扩瞳效果无统计学意义（P >0 .0 5 ）。
Result: there is no difference on mydriasis in these groups by dripping tropicamide eyedrops(P<0.05).
然而，对于因光路遮挡等原因所造成的非连通形状光瞳——也即“复杂光瞳”，则由于前期迭代时获得的包裹相位在光瞳被遮挡区域内也有虚假的值，上述解包裹处理将可能失败。
However, for a complicated pupil, such as that in obstructed pupil optics, the said unwrapping approach would fail owing to the fake values at points located in obstructed areas of the pupil.
然而，对于因光路遮挡等原因所造成的非连通形状光瞳——也即“复杂光瞳”，则由于前期迭代时获得的包裹相位在光瞳被遮挡区域内也有虚假的值，上述解包裹处理将可能失败。
However, for a complicated pupil, such as that in obstructed pupil optics, the said unwrapping approach would fail owing to the fake values at points located in obstructed areas of the pupil.
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