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Clinical outcomes after MyoRing implantation in postoperative LASIK ectasia using mechanical dissection with the PocketMaker microkeratome technology

Poster Details

First Author: K.Jadidi IRAN

Co Author(s):    S. Mosavi   F. Nejat   S. Serahati        

Abstract Details


To evaluate the clinical outcomes after implantation of the MyoRing (DIOPTEX GmBH, Linz, Austria)in patients with ectasia after LASIK.


Department of Ophthalmology, Bina Eye Hospital , Tehran, Iran


A total of 7 eyes of 7 patients with ages ranging from 20 to 41 years were included. All cases presented with reduced best spectacle-corrected visual acuity, contact lens intolerance or discomfort, and central corneal thickness of more than 350 μm. MyoRing implantation was performed in patients with ectasia after LASIK using a mechanical dissection with the PocketMaker microkeratome. Uncorrected and corrected distance visual acuity, refraction, topographic findings and adverse events were reported during a 3-year follow-up.


The mean age of the patients was 34 years with all patients being males. Uncorrected distance visual acuity , Corrected distance visual acuity, maximum keratometry, sphere and cylinder were improved from preoperative values at 3 month after surgery with no significant change afterward. By the last follow-up visit, three patients had gained one or more lines, two patients had no changes and two patients had lost one or more lines of visual acuity (VA). No intraoperative complications were noted.


Our findings suggest that MyoRing implantation using mechanical dissection with the PocketMaker microkeratome technology in patients with postoperative LASIK ectasia does not appears to be as effective as in non-post LASIK ectasia. However, Large comparative multicenter studies are recommended to verify and further clarify these results.

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