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泪液分泌量正常时,由于排泄泪液的系统发生障碍而造成的泪液外流,称为泪溢。致泪溢的原因分为泪道系统本身的疾患和泪道系统以外的疾患。泪道系统以外的疾患,在此从略。泪道系统本身的疾患,除明显泪小点和泪小管异常(如泪小点位置外向、缺如、堵塞和泪小管外伤性断裂等)比较容易通过外眼检查发现以外,对泪道其它部位疾患的准确诊断,往往需借助一些其它诊断方法。近年来,由于泪道疾患诊断方法的发展,加深了人们对泪道疾病的认识,也为正确拟定治疗
Tears fluid secretion is normal, due to the system of excretion of tears disorder caused by the tear outflow, known as the overflow of tears. The cause of tearing is divided into the system of the lacrimal system itself and other diseases outside the system of the lacrimal duct. Lacrimal system outside the disease, here omitted. Lacrimal duct system itself disorders, in addition to obvious tears punctate and canalicular abnormalities (such as the location of the punctum ectopic, absent, blockage and traumatic rupture of the canalicular puncture, etc.) easier to find through the outer eye, the other parts of the lacrimal duct Accurate diagnosis of disease, often need to rely on some other diagnostic methods. In recent years, due to the development of diagnostic methods of lacrimal duct disease, deepening people’s awareness of lacrimal duct disease, but also for the correct formulation of treatment