direct ophthalmoscope

例句：

1. 1.The doctor uses a direct ophthalmoscope to examine the patient's eyes.
   医生使用直接检眼镜来检查病人的眼睛。
2. 2. During surgery, the surgeon uses a direct ophthalmoscope to observe the eye tissue.
   在手术期间，外科医生使用直接检眼镜来观察眼组织。
3. 3. The patient was given a direct ophthalmoscope to help them see clearly during the examination.
   患者被给予一个直接检眼镜，以便在检查期间看得清楚。