方法：运用折光分析法测定水杨酸醇溶液中水杨酸含量。
1·It's necessary to dilate the pupils for the eyetest . In this way we can get the exact dioptre.
医生：验光需要放大瞳孔，这样我们可以得到准确的屈光度。 %。
2·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.
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。