According to Zhao, an expert from the Eye Hospital affiliated to Tianjin Medical University, the main points of astigmatism examination are as follows:

1. The vision is blurred, and the difference between near and far vision is directly proportional to the astigmatism.

2. Eye fatigue and hyperopia astigmatism are more obvious. There may be eye swelling, dull eyes, tears, headache, and severe cases may be accompanied by nausea and vomiting.

3. Fundus: If the astigmatism is high, the optic papilla can be oval.

4. After p 1 acid dish or window reflection test, the corneal curvature is inconsistent.

5. People with high astigmatism often squint to play the role of cracks or pinholes.