transplantation of conjunctiva

例句：

1. 1. The patient underwent successful corneal transplantation surgery.
   患者接受了成功的角膜移植手术。
2. 2. This is a rare but life-saving procedure for patients with severe corneal damage.
   这是一项罕见但挽救严重角膜损伤患者的救命手术。
3. 3. Corneal transplantation is a complex medical procedure that requires specialized training and expertise.
   角膜移植是一项复杂的医疗程序，需要专门的培训和专业知识。