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Comparison between keraring and myoring implantation using femtosecond laser for treatment of keratoconus

Poster Details

First Author: M.Saleem EGYPT

Co Author(s):                  

Abstract Details

Purpose:

To compare the safety and efficacy of keraring versus myoring implantation using femtosecond laser for treatment of keratoconus.

Setting:

Sohag University Hospital, Egypt.

Methods:

Methods: Nineteen eyes of 12 patients with keratoconus were included in this study. Group (A) included 12 eyes which were subjected to Keraring implantation. Group (B) included 7 eyes which were subjected to myoring implantation. All eyes were subjected to preoperative and postoperative uncorrected and corrected distance visual acuity (UDVA and CDVA), refraction, keratometry, pachymetry and corneal topographies during the six months follow up period. Results: In Group (A), the preoperative mean UDVA was 1.30±0.24 (logMAR±SD) while the postoperative mean UDVA was 1±0.18. The preoperative mean CDVA was 0.90±0.23 while the postoperative mean CDVA was 0.60±0.28. The preoperative K average was 54.70±0.73 (D±SD) that decreased to 52.83±1.61 D. The postoperative mean astigmatic correction was 3.80 ± 0.56 D. In Group (B), the preoperative mean UDVA was 1.30 ± 0.16 while the postoperative mean UDVA was 0.90±0.20. The preoperative mean CDVA was 0.70±0.14 while the postoperative mean CDVA was 0.30±0.11. The preoperative K average was 55.38±1.10D that decreased to 47.12±1.41 D. The postoperative mean myopic correction was 7.16±2.13D.

Results:

Keraring is best for keratoconus cases with oval or oblique cones and best correcting the astigmatic component of keratoconus. Myoring is best for keratoconus cases with central or nipple cones and best correcting myopic component of keratoconus.

Conclusions:

-

Financial Disclosure:

NONE

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