pericentral scotoma

例句：

1. 1. The patient's pericentral scotomawas significantly reduced after the treatment.
   治疗后，患者的中央偏盲区显著缩小。
2. 2. The researcher found that the pericentral scotoma is a common symptom in patientswith visual impairment.
   研究者发现，中央偏盲区是视力受损患者常见的症状之一。
3. 3. Thepatient's pericentral scotoma was caused by a rare geneticdisorder.
   患者的中央偏盲区是由一种罕见的遗传性疾病引起的。