患者，男，９岁，学生。于１９９８年９月２３日在放学回家途中，忽觉有异物进入眼内，致眼难以睁开、流泪。到医院眼科就诊，从右眼内取出针尖样白色小虫５条。查体：右眼结膜轻度充血，穹隆部结膜有４条白色小虫蠕动，取出后由我校寄生虫学教研室鉴定为羊狂蝇１龄幼虫。... Patient, male, 9 years old, student. On September 23, 1998, after returning home from school, I suddenly felt that foreign bodies entered the eyes and made it hard to open and shed tears. To the hospital ophthalmology, remove the needle-like white insects from the right eye 5. Physical examination: Right conjunctiva mild hyperemia, vault conjunctiva 4 white worms peristalsis, removed by the I parasitology department identified as sheep first instar larvae of mad flies. ...