The 25-G PPV with peeling of the ILM and air tamponade is an effective technique and presents no increased risks in comparison with routine procedures. The main benefit of the intervention is its good tolerance by the patient, particularly with respect to painfulness and postoperative irritation.
Pseudophakic patients, with a history of vitrectomy, even those with a basal iridectomy (Ando), are at high risk for migration of the Ozurdex® into the anterior chamber and development of corneal edema.
Background. Persistent idiopathic macular hole (IMH) after initial pars plana vitrectomy (PPV) appears in approx. 12% of cases. It is, therefore, one of the most common complications. IMH re-operation results tend to be better in eyes where IMH had been closed, while IMH re-operations in cases when the initial surgery had failed tend to be less successful: IMH often becomes even larger and visual acuity decreases, anatomical success rate of closure is about 60% and the resulting postoperative visual acuity is about 20/100. Aims. To establish anatomical and functional success rate of repeated operations of recurrent idiopathic macular hole. Materials and Methods. We evaluated the retrospective results of re-operations of persisting IMH that is cases in which the initial surgery did not result in closure: 6 eyes in 6 patients out of the overall 55 operated on IMH (primary PPV failed in almost 11% of cases). The follow-up period was 18 months (since the first surgery). Results and Conclusion. After the second PPV, the IMH was closed in 100% of operated eyes. It was not necessary to perform a third PPV during the follow-up period. In all cases the visual acuity improved. Anatomical and functional results of IMH treatment can be considered satisfactory. We consider the following combination of factors significant for the anatomical success rate of PPV: IMH size and stage, technical precision of the ILM peeling and the suction of the IMH contents, strict adherence to the recommended head positioning in early postoperative period, and IMH duration.
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