Techniques of Bleb Repair

Filtering bleb-related complications have increased manifold after use of anti metabolites for filtering surgery. Their diagnosis and management is of utmost importance in view of their potentially sight threatening implications. Though there are many conservative treatment modalities like pressure bandage, bandage contact lens, autologus serum & laser treatment etc that can be tried in early small leaks, a large leak with shallow anterior chamber or hypotonous maculopathy warrants surgical repair of the bleb. Various techniques of bleb repair like conjunctival advancement or graft, scleral or pericardium patch and amniotic membrane graft are described that can be tried according to the nature of the leak, surrounding healthy tissue or presence of fistula or suture tract. The results of bleb repair as reported by various studies are encouraging so we can conclude that proper intervention at the proper time can help in preventing vision-threatening complications.