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为了清晰地观察到眼前节的微细结构,包括房角的关、闭情况,角膜和前房的厚度,虹膜、睫状突、睫状冠、角膜缘、巩膜突、脉络膜的形态及病灶,必须克服光学设备的局限性,寻找新的方法满足临床需要。利用高频40～100 MHz的超声波对眼前节进行扫描,是迄今为止国内外眼科临床认可的一种行之有效的方法。由于笔者承担的国家“十五”科技攻关重大医疗器械关键技术研究及重大产品开发项目“BME-300W眼科超声生物显微镜”,是一种甚高频B模式的超声成像技术,使用了50 MHz的超声脉冲,其轴向分辨力高达50μm,横向分辨
In order to clearly observe the anterior segment of the fine structure, including the angle off, the cornea and anterior chamber thickness, iris, ciliary processes, ciliary crowns, limbal, scleral, choroidal morphology and lesions must be Overcome the limitations of optical equipment and find new ways to meet clinical needs. The use of high-frequency ultrasound 40 ~ 100 MHz on the anterior segment of the scan is by far the clinical approval of ophthalmology at home and abroad is an effective method. As the author undertakes the key technical research on major medical devices and the major product development project “BME-300W Ophthalmic Ultrasound Biological Microscope” in the national “Tenth Five-year” scientific and technological research project, it is a VHF B-mode ultrasound imaging technology that uses 50 MHz Ultrasonic pulse, its axial resolution up to 50μm, horizontal resolution