本文分析了30岁以下孔源性视网膜脱离病人113例,男89例,女24例,男:女=3.7:1.有明显外伤史者39例,其中34例为男性,外伤以球类碰撞伤为主.这是青少年网脱的一个特点,是男性发病率较女性高的原因之一.屈光状态以正视眼较多(62眼,48.5%)而-6D以上高度近视较少(41眼32%),网脱裂孔以单个和圆形者居多.锯齿缘离断仅19例(14.8%),且13例有明显外伤史,作者认为锯齿缘离断与外伤关系密切. This article analyzes 113 cases of rhegmatogenous retinal detachment under age 30, 89 males and 24 females, male: female = 3.7: 1. 39 cases with obvious history of trauma, of which 34 were male, traumatic collision with a ball This is one of the characteristics of teenagers off, which is one of the reasons why men have a higher morbidity than females.More patients with refractive errors (62 eyes, 48.5%) and less than -6D high myopia (41) (32% of the eyes), and the majority of cysts were single and round.The number of serrated edges was only 19 cases (14.8%), and 13 cases had obvious trauma history.The authors think the serrated edge is closely related to trauma.