Pars plana vitrectomy for vitreous hemorrhage without and with tamponade of gas to prevent early recurrent vitreous hemorrhage

Abstract

Purpose: to evaluate effect of endo tamponade of non-expansile C3F8 on early post operative vitreous hemorrhage. Methods: Forty cases selected through OPD in vitreo-retina unit of mayo hospital by non probability convenient sampling and divided randomly in two groups of twenty each by using lottery method. Standard 23 guage vitrectomy was done in all cases. Group 1 closed in fluid without endo-tamponade while in group 2 endo-tamponade of non expansile gas was given. Cases were followed for rate of early recurrent vitreous hemorrhage and need for revision surgery in 2 months time. Results:  Marked decrease in rate of early vitreous hemorrhage with endo-tamponade of gas. Only 15%-30% developed early VH as compared to 45% to 65% in no tamponade group. About 55% in group 1 and 10% in group 2 were treated with vitreous lavage for non clearing vitreous hemorrhage. Conclusion: We found endo-tamponade of non-expansile gas much superior to no tamponade at end of PPV for diabetic vitreous hemorrhage. It reduces the rate of revision surgery.