Purpose: To evaluate whether omitting the use of the 360° episcleral band in combination with pars plana vitrectomy and silicone oil tamponade had an effect on either anatomical or functional success in cases of perforating eye injury due to gunshot.
Methods: A retrospective consecutive interventional study from medical records. Surgeries were performed in the period from January 2011 until the end of December 2013. Patients with perforating eye injury due to gunshots were treated with pars plana vitrectomy and silicone oil tamponade with or without the addition of a 360° scleral band.
Results: Two hundred and thirteen eyes of 210 patients were reviewed of which 17 patients were excluded, 5 patients because the vision had no light perception and 12 patients because of the short follow-up period (less than 6 months). The remaining 196 eyes of 193 patients were analyzed. All surgeries were performed by 1 surgeon. The included eyes have been classified into 2 groups; 101 eyes in the first group (360° band was used), and 95 eyes in the second group (without 360° band). The included patients were followed up at least 6 months after the last surgery. By first surgery, anatomical success was achieved in 93 eyes (92.08%) in Group 1, and retinal detachment developed in 8 eyes (7.92%). In Group 2 anatomical success was achieved in 91 eyes (95.78%), and retinal detachment developed in 4 eyes (4.21%). All cases with retinal detachment were reattached by second surgery. In the first group, visual acuity improved in 80 eyes (79.2%), unchanged in 14 eyes (13.86%), and was less than that of preoperative value in 7 eyes (6.93%). In the second group visual acuity improved in 78 eyes (82.1%), unchanged in 13 eyes (13.68%) and less than that of preoperative value in 4 eyes (4.21%). No statistically significant difference was found between the two groups (P = 0.943) in anatomical or functional results. None of the operated eyes developed phthisis bulbi.
Conclusion: The abundant use of the 360° scleral band in combination with pars plana vitrectomy and silicone oil tamponade did not change the anatomical or the functional outcomes in the management of perforating eye injury due to gunshots.
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