方法：对93例行巩膜扣带术的RRD患者临床资料和随访资料进行回顾性分析，按不同年龄、视网膜脱离(RD)的时间、视网膜裂孔情况、视网膜裂孔的位置与数目、视网膜脱离的范围及隆起度、手术方式等分别分组后进行检验，并将确定的统计量与术后SRF 1mo内吸收进行Logistic多因素线性回归分析，分析年龄、病程、屈光度、手术方式等多种因素与术后SRF吸收的关联情况； 并比较不同年龄患者、不同RD病程之间RRD患者术后SRF吸收时间的差异。

结果：患者RRD裂孔的位置、手术嵴的高低、年龄、病程组间比较差异有统计学意义(P<0.05)。患者的性别、屈光度、视网膜裂孔数目、视网膜脱离范围、视网膜隆起度、手术过程中是否放液、玻璃体腔是否注气对术后SRF吸收的影响，差异无统计学意义(P>0.05)。

结论：视网膜下液的延迟吸收原因是多方面的，环扎与硅压手术嵴的高低， 冷凝的程度与范围、脱离的时间、患者年龄、与孔源性视网膜脱离术后视网膜下液吸收的时间均有关。冷凝与扣带术可加重视网膜脉络膜血液循环障碍。

METHODS: The clinical and follow-up data from consecutive series of 93 eyes of 93 patients received scleral buckling surgery for RRD were retrospectively reviewed. The relationship of multiple factors, including age, duration of disease, location of retinal hole, number of retinal hole, area and height of retina detachment, scleral buckling surgery methods with SRF absorption were analyzed respectively by χ² test.The correlations among statistically significant factors with postoperative SRF absorption were analyzed by multivariate Logistic regression analysis.

RESULTS: Postoperative SRF delayed absorption was found with significant difference among location of retinal hole(P=0.031)and the height of scleral buckling surgery ridge(P=0.047), different age(P=0.043)and different duration(P<0.05). Multivariate Logistic regression analysis showed that the preoperative SRF absorption was found with no significant difference among patient's gender and refraction, and number of retinal hole, and height of retinal detachment,management of subretinal fluid and intravitreal gas injection(P>0.05).

CONCLUSION:The causes of SRF delayed absorption depend on many factors, including the height of scleral buckling surgery ridge, the degree and scope of scleral condensation, RD time, location of retinal hole, and patients' age and characters. Scleral condensation and scleral buckling surgery may increase the retinal choroid blood circulation obstacle.