ABSTRACT
Objective: silicone oil [SO] is an invaluable tool in the management of complex retinal detachments [RDs]. Injection of silicone oil is associated with a variety of ocular complications specially when it is kept for a long time and its removal is endangering retinal re-detachment. The objective of this study was to determine the frequencies of different ocular complications associated with silicone oil injection in our setup
Study Design: case series
Place and Duration of Study: this study was conducted at Vitreo-retina division of Al-Shifa Trust Eye Hospital, Rawalpindi from January 2014 to June 2014
Material and Methods: a total of 30 patients were included in the study who underwent pars-planavitrectomy [PPV] with silicone oil injection for complex retinal detachments. The patients who had reached between 3 months and 6 months of their postoperative period and were presenting with some complications related to silicone oil injection were included in the study. Their records were reviewed and pre-operative data were collected regarding state of the eye preoperatively. Then the post-operative complications were noted. The descriptive and analytical statistics of different variables were measured using SPSS-17.0 software
Results: out of thirty patients included in our study 23 [76.7%] were male and 7 [23.3%] were female. The mean age was 21.53 +/- 16.004 years and range was 66 years. The mean pre-operative intra-ocular pressure [IOP] was 14.0 +/- 2.150 mmHg and range 8 mmHg and the mean post-operative IOP was 24.93 +/- 13.889 mmHg and range 45 mmHg [p=0.001. The pre-operative PVR grade-C was absent in 12 [40%] patients and was present in 18 [60%] patients and post-operative PVR grade-C was absent in 24 [80%] patients and was present in 6 [20%] patients [p=0.004; McNemar test]. Band keratopathy was seen in 8 [26.7%] and corneal decompensation in 2 [6.7%] patients. Emulsification of silicone oil was seen in 14 [46.7%] patients. Rubeosisiridis was present in 2 [6.7%] patients
Conclusion: apart from other complications, raised intraocular pressure is a significant postoperative complication of eyes with silicone oil injection, so should be kept in mind because if not addressed properly it may lead to irreversible blindness in these cases