Long-term results of MyoRing treatment of keratoconus☆

PURPOSE To study long-term results of MyoRing treatment of keratoconus. METHODS Retrospective study of MyoRing implantation into a corneal pocket for keratoconus. RESULTS Corneal thickness at the thinnest point remained unchanged, SIM K's, manifest sphere and cylinder were significantly improved at the first follow-up 9 months postoperatively and remained stable until the last follow-up about 5 years after surgery. Uncorrected and corrected distance visual acuity (UDVA, CDVA) were significantly improved at the first follow-up 9 months postoperatively and were further ameliorated until the last follow-up about 5 years after surgery. CONCLUSION The treatment was safe and effective with continuing improvement of visual acuity during the 5 years after surgery.