影响视力恢复的主要原因是角膜中央区瘢痕和角膜不规则散光。
Major causes of limited visual acuity were central corneal scar and irregular astigmatism.
随着疾病的进展，光线进入眼中发生扭曲，也就是不规则散光。
As the disease continues to advance, the light rays entering the eye become significantly distorted, called irregular astigmatism.
圆锥角膜是一种先天性发育异常，是一种以角膜扩张为特征，致角膜中央部向前凸出、变薄呈圆锥并产生高度不规则散光的角膜病变。
Keratoconus is an uncommon autosomal recessive inheritance, characteristic of corneal ectasia, which results in the corneal central anterior bulging, conus formation and high irregular astigmatism.
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。
Astigmatism: distorted vision resulting from an irregularly curved cornea, the clear covering of the eyeball.
若角膜呈榄球形状，即其弧度呈不规则，水平光线将聚焦在和垂直光线不同的焦点，这便是散光。
Astigmatism occurs if the cornea is shaped like a rugby its curvature is not uniform. As a result horizontal lines are focused to a different point from vertical lines.
散光是由不规则的角膜或晶状体所引起的。
Astigmatism occurs due to the irregular shape of the cornea or the lens inside the eye.
散光是由不规则的角膜或晶状体所引起的。
Astigmatism occurs due to the irregular shape of the cornea or the lens inside the eye.
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