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Corneal intrastromal MyoRing Implantation in keratoconus treatment

Poster Details

First Author: A.Saeed EGYPT

Co Author(s):    A. Sharawy   D. Goda           

Abstract Details


To evaluate the efficacy and safety of MyoRing implantation into a corneal stromal pocket via Corneal intrastromal implantation system (CISIS) for keratoconus (KC) treatment.


Egyptian Eye Academy and Benha University Hospital, Egypt.


Non-randomized prospective clinical trial included 22 eyes of 22 KC patients. The MyoRing was inserted into a 300um corneal pocket centered on the corneal reflex. Follow up for 6 months with measurement of uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), and Pentacam corneal imaging was performed. Any surgical complication was reported.


There was high statistically significant improvement of UCVA, BCVA, K1, K2, and Km when comparing the preoperative with all postoperative values (p value <0.001). The mean UCVA increased from 0.12±0.17 to 0.5±0.24 and the mean BCVA from 0.3±0.143 to 0.7± 0.22 at 6 postoperative months (P<.001). The mean K1, K2 and Km decreased from 48.45±3.79, 54.46±3.94 and 51.31±3.56 to 45.79± 2.97, 42.56± 3.17and 49.07±3.33 at 6 postoperative months, respectively. Three cases of severe KC underwent position adjustment of the implant. No detectable intra- or postoperative complications were observed in any of the cases.


MyoRing intrastromal implantation could represent an efficient, safe, modifiable and simple therapeutic option for KC management.

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