A week or so before your surgery, your doctor performs a painless ultrasound test to measure the size and shape of your eye.
手术之前的一周左右，医生会给您做一些无痛的超声检查，以便测量您眼球的大小和形状。
2
Before surgery, your eye doctor takes a detailed medical history and USES specialized equipment to carefully measure your cornea, noting the shape and any irregularities.
手术前眼科医生会看你的详细病例，然后用专门的仪器测量你的角膜，计算其形状和任何不规则处。
3
His naked eye can measure and transfer angles with great precision, miters join seamlessly, and his finishing work has earned him acclaim in local newspapers.