[Comparison of ultrasonographic examinations with surgical findings after surgery of idiopathic macular hole].

PURPOSE

In retrospective study to compare echographic features of posterior vitreous face and vitreo-macular region with preoperative findings by pars plana vitrectomy of idiopathic macular hole.

MATERIAL AND METHOD

The group includes 27 eyes with idiopathic macular hole. 11 in II. and 16 in III. stage by Gass's classification. The spectrum of identifiable echographic features included: 1. partial posterior vitreous face separation; 2. presence of a pseudooperculum; 3. high spike of posterior vitreous face over the macula and/or optic nerve head and 4. combination of these findings, eventually some other pathology of vitreous. Peroperative clinical findings included: 1. presence of a pseudooperculum; 2. facility of elevation and separation of posterior vitreous face.

RESULTS

The echographic findings showed: 1. 5-times (18.5%) partial posterior vitreous face separation; 2. 5-times (18.5%) the presence of a pseudooperculum; 3. 4-times (14.8%) the high spike of posterior vitreous face in front of the retinal surface spike; 4. 10-times (37.0%) the combination of 1. -3. and/or some other pathology of vitreous. 3 eyes (11.2%) were without relevant pathologic echographic findings. Preoperatively was 1. the presence of a pseudooperculum confirmed in 9 eyes (33.3%). 6-times (22.2%) the posterior vitreous face had separated by core vitrectomy, no active elevation was needed. In 21 eyes (77.8%) the active elevation of posterior vitreous face was performed, 6-times (28.4%) was the elevation more difficult.

CONCLUSION

Echographic features of posterior vitreous face and vitreomacular region correlate with preoperative findings by pars plana vitrectomy and determine a strategy of surgical intervention.