重视蠕形螨感染与睑缘炎

Discussion on Demodex infection and blepharitis

蠕形螨作为引起睑缘炎可能的病原之一,正逐渐被眼科医生所认识.蠕形螨是人体毛囊和皮脂腺中的一种永久性小型寄生螨,人群体表感染率很高.寄居于人眼睑的蠕形螨分为2种：毛囊蠕形螨和皮脂蠕形螨.蠕形螨生活周期约为14.5d.目前对于蠕形螨感染是否为睑缘炎的病因存在不同的看法.眼科临床医师应深入了解蠕形螨的病原学特征、其与睑缘炎发生的关系、蠕形螨的临床检测方法和阳性结果判定标准,以提高对蠕形螨睑缘炎的临床认识,为该疾病的预防和治疗提供有用线索.

As a possible pathogen of blepharitis,Demodex is gradually known by ophthalmologists.Demodex is one of the permanent small parasitic mites in human hair follicle and sebaceous glands,with high infective rate in human body.There are two kinds of Demodex that colonized in human eyelid：Demodex folliculorum and Demodex brevis.The life cycle of Demodex is about 14.5 days.There have been different views on Demodex as the cause of blepharitis.We performed a deep research on the pathogenic characteristics of Demodex and explored the relationship between blepharitis and Demodex.The clinical diagnose methods and diagnose criteria were also summarized to improve the clinical understanding of Demodex blepharitis,which provides a useful clue for the prevention and management of this disease.