The total astigmatism was well correlated with cornea astigmatism.
角膜 散光与总和散光呈显著正相关;
When the cornea curves or flattens unevenly, the result is astigmatism, which disrupts focus of near and distant vision.
散光是当角膜变弯或者变平时表面不平坦,影响视近、视远时的聚焦。
Astigmatism: distorted vision resulting from an irregularly curved cornea, the clear covering of the eyeball.
散光:因角膜(覆盖眼球的一层透明膜)不规则弯曲而引起的影象变形。
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