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在４５例累及后段的穿孔性眼外伤病例行玻璃体切割术中，随机对其中２５例同时行预防性巩膜环扎术，观察环扎术对后期视网膜脱离发生率的影响。环扎术采用３ｍｍ宽的硅胶带置于角巩缘后９ｍｍ至１２ｍｍ之间，形成一个中等高度的巩膜嵴。经６个月以上的随访，行环扎术的２５例中发生视网膜脱离５例（２０％）；未行环扎术的２０例中有７例发生视网膜脱离（３５％）（Ｐ＜０．０５）。本结果显示：预防性巩膜环扎对穿孔性眼外伤后期视网膜脱离发生率的降低是有益的。
In 45 cases of perforation traumatic eye injury involving the posterior segment of the routine vitrectomy, of which 25 cases were randomized preventive scleral cerclage at the same time, observe the effect of cerclage on the incidence of late retinal detachment. Cerclage using 3mm wide silicone tape placed in the angle between 9mm to 12mm after the edge to form a medium-high scleral crest. Retinal detachment occurred in 5 of 25 cases (20%) during cerclage surgery and in 7 cases of non-cerclage surgery (35%) after 6 months of follow-up (P <0. 05). This result shows that prophylactic scleral buckling is beneficial for reducing the incidence of retinal detachment in the late stage of perforation ocular trauma.