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泪道疾患为眼科常见病多发病,泪道机能检查方法繁多,但尚无一种最完善的。荧光素滴眼法简单、无痛苦、亦符合生理要求,但不能解决泪道阻塞定位问题,该法如配合其他检查,尚不失为一种诊断泪道阻塞有临床价值的辅助方法。有一种压力转换器测量泪道的不同部位压力的方法,以确定泪道阻塞部位,但因需要复杂的设备和手续繁琐而不能推广。泪道冲洗术仍为目前临床上最广泛应用的一种方法。但主要缺点是由于外加压力,在泪道机能性不全阻塞或器质性阻塞上可造成假象。X线泪道碘油造影术可较好的了解泪囊的大小,但由于需要注入碘油,亦有外加压力的干扰。近年来核素造影术在临床上的应用为泪道机能检查开辟一种新的途径。1972年Rossomondo
Lacrimal disease is a common disease frequently seen in ophthalmology, lacrimal duct function check many ways, but there is not a most perfect. Fluorescein eye drop method is simple, painless, but also meet the physiological requirements, but can not solve the localization of lacrimal duct obstruction, the law, if combined with other tests, is still a diagnosis of lacrimal duct obstruction with clinical value of the auxiliary method. There is a pressure transducer to measure the pressure in different parts of the lacrimal duct to determine the lacrimal duct obstruction site, but due to the complicated equipment and procedures cumbersome and can not be generalized. Lacriques irrigation is still the most widely used clinical method. But the main drawback is that due to external pressure, laryngeal impaired functional blockage or organic obstruction can cause illusion. X-ray lacrimal lipiodol angiography can better understand the size of the lacrimal sac, but due to the need to inject lipiodol, there are external pressure interference. In recent years, the clinical application of radionuclide imaging for lacrimal duct function examination opened up a new way. 1972 Rossomondo