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Year : 2020  |  Volume : 23  |  Issue : 3  |  Page : 337-342

Outcome of vitrectomy for advanced proliferative vitreoretinopathy complicating primary rhegmatogenous retinal detachment among Nigerians

Department of Ophthalmology, Eye Foundation Hospital; Eye Foundation Retina Institute, 27 Isaac John Street, GRA, Ikeja, Lagos, Nigeria

Correspondence Address:
Dr. O N Okonkwo
Eye Foundation Retina Institute, 27 Isaac John Street, GRA, Ikeja, Lagos
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/njcp.njcp_158_19

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Aim: To present the anatomical and visual outcome and compare different techniques in the surgical treatment of proliferative vitreoretinopathy (PVR) in Nigerians.Method: Comparative retrospective review of PVR grade C and D eyes that had vitreoretinal surgery with silicone oil between April 2005 and December 2012. Data was extracted from consecutive case notes after exclusion of eyes with PVR associated with proliferative diabetic retinopathy (PDR), proliferative sickle cell retinopathy (PSCR) and eyes with nonuse of silicone oil. A comparison of the outcome of vitrectomy alone (Vit.), versus combined with a scleral buckle (Vit.+SB), versus with retinectomy (Vit.+RT), versus with all three procedures (Vit.+SB+RT) was done. Statistical analysis was done using the Statistical Package for Social Sciences version 16 software. Pearson Chi-square test and Fisher's exact T-test were used to determine the effect of relationships. Results: 138 eyes of 138 patients had grades C (100 eyes) and grade D (38 eyes) PVR. Surgery involved vitrectomy and membrane peel in 53% of eyes, additional scleral buckle in 22%, and retinectomy was performed in 17%. Retinal reattachment rate was 86% for PVR C eyes and 87% in PVR D eyes. There was no statistically significant difference in anatomical outcome between vitrectomy alone and the combination surgeries. In the vitrectomy only category, the postoperative vision was noted to improve (> preoperative), in 48% of PVR C and in 31% of PVR D. 33% of PVR C and 44% of PVR D eyes had a worse vision (< preoperative). Visual outcome was similarly poor in the combination surgeries with improved vision noted in 12%, 44%, and 33% of the Vit.+SB, Vit. +RT, and Vit.+SB+RT PVR C eyes, respectively. In PVR D eyes, improved vision was seen in 57% and 12% of Vit.+SB and Vit.+RT eyes, respectively. Conclusion: Surgery results in anatomical reattachment and there is nonsuperiority of any technique. Visual outcome is poor as previously reported. Recent trials of pharmacological adjuncts may show promise for improved visual outcomes.

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