Abstract:AIM: To analyze the causes of delayed subretinal fluid(SRF)absorption after the rhegatogenous retinal detachment(RRD)surgery, in order to shorten the SRF absorption time.
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.
