Refractive Outcomes after Myoring Implantation

Khorrami Nejad, M and Ghorbani, M and Aghazadeh Amiri, M and Khodaparast, M and Asgarizadeh, F and Tabatabaei, M and Narooie Nouri, F (2016) Refractive Outcomes after Myoring Implantation. Journal of Paramedical Sciences & Rehabilitation, 5 (4). pp. 16-22.

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Purpose: To investigate the refractive error and visual acuity before and six months after myoring implantation in patients with keratoconus at Farabi hospital in Tehran, Iran. Methods: In this retrospective study, thirty-four eyes of twenty-eight keratoconic patients with mean age of 29 ± 7.41 years who underwent myoring operation and reevaluated after 6 months were recruited. In these patients, best corrected visual acuity (BCVA), refractive outcomes and Pentacam Oculus GmbH findings were assessed. All patients had clear central corneas, contact lens intolerance, and a central corneal thickness of more than 360 mm. Results: Six months postoperately, the mean BCVA (in LogMAR value) improved significantly from 0.30 ±0.22 to 0.20 ± 0.20 (p=0.006) and the mean spherical refractive error improved from -4.66 D ± 3.76 to -1.48 D ± 3.72 (p<0.001). The mean cylindrical refractive error decreased significantly from -4.27D ±3.15 to -2.18D ±1.63 (p<0.001). In cylindrical refraction, the frequency percent of with the rule, oblique and against the rule axes of astigmatism before operation were 21% ,44% and 35%, respectively and after operation have changed to 18%, 24% and 58%, respectively. Conclusion: Myoring operation provided significant improvement in BCVA, spherical and cylindrical refractive errors.

Item Type: Article
Subjects: WW Ophthalmology
Divisions: Journals > Journal of Paramedical Science and Rehabilitation
Depositing User: jpsr jpsr
Date Deposited: 28 Sep 2017 13:41
Last Modified: 28 Sep 2017 13:41

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