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Original Article

PAFMJ. 2016; 66(3): 302-305


OCULAR COMPLICATIONS OF SILICONE OIL

Muhammad Kamran Khalid, Naveed Ahmed, Yasir Nadeem, Nadeem Qureshi.

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 & 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.

Key words: Band keratopathy, Intraocularpressure, Proliferative vitreo-retinopathy, Retinal detachment, Silicone oil.



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