1997年11月～12月我院卫生室共收治28例耻阴虱感染的初中学生，且学生均来自于同一学校，现将有关情况报道如下。28例学生均为男性，年龄14－15岁，其中8例寄生于上眼缘，2例为上下眼线同时寄生。28例中13例在会明部未发现耻虱。以眼缘感染到眼科就诊的学生，其主要临床症状为? From November to December 1997, a total of 28 junior high school students who were infected with disgrace pubescens were admitted to our clinic, and all the students came from the same school. The relevant information is reported as follows. 28 students were male, aged 14-15 years old, of which 8 parasites on the upper edge of the eye, 2 cases at the same time upper and lower eyelid parasitism. Thirteen of the 28 patients had no disgusting findings at Huiming. Eye infection to ophthalmology students, the main clinical symptoms?