retinal astigmatism

例句：

1. 1.This patient has retinal astigmatism, which can affect his vision.
   这名患者有视网膜散光，这会影响他的视力。
2. 2. The doctor advised him to undergo an eye examination for retinal astigmatism.
   医生建议他接受一次检查以确定是否存在视网膜散光。
3. 3.Retinal astigmatism is a common condition that can cause blurred vision.
   视网膜散光是一种常见的状况，可能会导致视力模糊。