tangential astigmatic line

例句：

1. 1.The doctor used a laser to treat the patient's tangential astigmatic line.
   医生使用激光治疗患者的圆锥形散光。
2. 2.The patient had to wear special glasses to correct his tangential astigmatic line.
   患者不得不佩戴特殊的眼镜来纠正他的圆锥形散光。
3. 3.The test results showed that the patient's tangential astigmatic line was significantly improved after treatment.
   测试结果显示，患者在治疗后的圆锥形散光明显改善。