Vena choroidea superior

例句：

1. 1. The doctor performed a surgery on the patient's superior retinal vein to relieve his pain.
   医生为病人的视网膜上静脉进行了手术，以缓解他的疼痛。
2. 2. During the operation, the surgeon found the superior choroidal vein and tied it off to prevent further bleeding.
   在手术过程中，外科医生找到了视网膜上静脉并将其结扎，以防止进一步出血。
3. 3.The patient was advised to avoid activities that could strain the superior retinal vein, such as heavy lifting or prolonged sitting.
   患者被建议避免可能拉伤视网膜上静脉的活动，如重物搬运或长时间坐着。