Is surgery for proliferative vitreoretinopathy justifiable?

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Abstract
Surgery for proliferative vitreoretinopathy (PVR) may require prolonged procedures often with limited improvement in visual function. Forty-seven consecutive patients who had PVR surgery in one eye had a case note review to assess anatomical re-attachment rate and improvement in visual acuity. All patients had at least 3 clock-hours of grade C PVR membrane. Surgery comprised vitrectomy and membrane peel in all cases. There was a mean follow-up period of 9 months (range 3–23 months). Thirty-two eyes (68%) had an attached retina with the mean visual acuity being 0.089 (where 6/60 = 0.10). A mean of 2.15 PVR operations were performed per eye. Seventeen patients chosen at random were contacted by telephone and standardised questions were asked regarding their surgery. Eleven (65%) patients stated that, with the benefit of hindsight, they would still have had surgery and 8 (47%) patients stated that the peripheral vision gained was of benefit.