摘要
设计了一种带超声波测距装置的新型检影镜。可直接显示因检影距离所形成的人工近视屈光度的结果,验光师只要将显示的屈光度结果与反转点时的中和镜片屈光度进行代数和,就可得到患者的被检查眼实际的屈光度,大大地提高了验光的准确度。
A new retinoscope with the ultrasonic distance measure instrument is designed for directly displaying the dioptre of artificial myopia caused by retinoscopy distance. Optometrist can obtain real dioptre of the patient if only adding the direct dioptre of artificial myopia to neutral dioptre obtained at roll-back point. This instrument can obviously increase the accuracy of refraction.
出处
《医疗卫生装备》
CAS
2007年第1期26-27,共2页
Chinese Medical Equipment Journal
关键词
验光
检影镜
超声波测距
refraction
retinoscope
ultrasonic distance measure
