SECONDARY VITRECTOMY FOR THE TREATMENT OF MACULAR HOLES OCCURRING AFTER VITRECTOMY

Tangential foveal traction by the posterior vitreous cortex is regarde d as the main cause of full-thickness macular holes. This report docum ents two cases of full-thickness macular holes that developed after vi trectomy for other diseases in the apparent absence of the cortical vi treous traction. Autologous serum with pars plana vitrectomy was used to treat these cases. Anatomic closure of the holes was achieved. Macu lar holes developing after vitrectomy may have an etiology other than tangential vitreous traction, and secondary vitrectomy is useful in tr eating such holes.