Rona Technique For Large Full Thickness Macular Hole
Ramin Nourinia1 *, parisa nikzad1 , seyed mohamadmehdi moshtaghion1 , mohammad abolhosseini1
- Ophthalmic research center, shahid beheshti university of medical sciences, tehran,Iran
Abstract: To assess the anatomical and functional outcomes of new surgical technique in patients with large full thickness macular hole (FTMH).
Methods: In this prospective interventional case series patients with large idiopathic FTMH (aperture size > 500 µm) were included. Three port 25 gauge pars plana vitrectomy and induction of posterior vitreous detachment were performed. Internal limiting membrane (ILM) was stained with BBG. Four ILM flap with one disc diameter were created which base of them remained attached to the FTMH edge. Gas fluid exchange and SF6 20% injection were performed at the final stage of the surgery. Patients were followed for one year. The main outcome measures were BCVA changes and rate of macular hole closure. In addition, recovery of external limiting membrane (ELM), outer nuclear layer (ONL) and ellipsoid zone (EZ) were evaluated during one year follow up period.
Results: 14 eyes of 14 patients have been included heretofore. Mean size of macular hole aperture and base of macular hole were 652 ± 152 µm (501,950) and 964 ± 424µm (527,2098) respectively. One week after surgery the all of macular holes were closed. Mean BCVA at the baseline and one year after surgery was 1.52 ± 0.29 logMAR and 0.47 ± 0.34 logMAR respectively which was significantly improved. (P<0.001) Size of ELM, ONL and EZ layers defect at the one year follow up significantly were decreased in comparison to the one month follow up.
Conclusion: Rona technique may be a simple and effective surgical technique for the treatment of large full thickness macular hole.
