非对称性指数：PD组高于ET组，差异有显著性（P<0.05）。

The asymmetry index in PD group was higher than that in ET group ( P<0.05).

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角膜表面规则性指数(SRI)与角膜表面非对称性指数(SAI)呈正相关，而且近视眼的散光度与其屈光度、SAI呈正相关。

The surface regularity index (SRI) was positively correlated with surface asymmetry index (SAI), and the astigmatism was positively correlated with dioptre and SAI in myopia.

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角膜表面规则性指数(SRI)与角膜表面非对称性指数(SAI)呈正相关，而且近视眼的散光度与其屈光度、SAI呈正相关。

The surface regularity index (SRI) was positively correlated with surface asymmetry index (SAI), and the astigmatism was positively correlated with dioptre and SAI in myopia.

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