corneal limbus

例句：

1. 1. The doctor examined the patient's corneal limbus for signs of infection.
   医生检查了患者的角膜缘以寻找感染的迹象。
2. 2.During surgery, the surgeon carefully removed the damaged corneal limbus.
   在手术过程中，外科医生小心地切除了受损的角膜缘。
3. 3. The patient was advised to avoid touching the corneal limbus until the wound healed.
   患者被建议在伤口愈合之前避免触摸角膜缘。