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Aberrometric outcomes of intrastromal corneal ring segment (KeraR | 55115
Journal of Clinical and Experimental Ophthalmology

Journal of Clinical and Experimental Ophthalmology
Open Access

ISSN: 2155-9570

+44 1223 790975

Aberrometric outcomes of intrastromal corneal ring segment (KeraRing 355) in patients with keratoconus


World Ophthalmology Conference

November 24-25, 2016 Melbourne, Australia

Seyed Aliasgharmosavi

Iran

Scientific Tracks Abstracts: J Clin Exp Ophthalmol

Abstract :

Objective: To evaluate aberrometric changes in corneas with keratoconus implanted with intrastromal corneal ring segment (Keraring 355) during a 3-months follow-up. Design: Prospective, consecutive case series Methods: In this interventional study, 22 eyes of 21 keratoconic patients with mean age of 29 �?± 6 years who underwent KeraRing 355 intrastromal corneal insertion using a PocketMaker Microkeratome for channel creation and completed at least three months of follow-up were included. Uncorrected visual acuity( UCVA), best corrected visual acuity (BCVA), Contrast Sensivity, refractive outcome, Orbscan finding and corneal abberrations were assessed. Results: Three months postoperately, The mean UCVA (in LogMAR value) improved significantly from 0.75 �?± 0.33 to 0.31 �?± 0.23 and the mean BCVA improved (from 0.31 �?± 0.16 to 0.19 �?± 0.15). The mean spherical refractive error improved (from -1.37 �?± 1.36 to 0.01 �?± 2.47) and the mean cylindrical refractive error decreased significantly ( from -3.8 �?± 1.03 to -2.1 �?± 1.27(. Also, the mean keratometry value decreased from 47.63 �?± 1.9 to 42.06 �?± 2.47. In regard to aberrometry, Low order aberration (defocus and astigmatism) decreased significantly postoperatively. No statistically significant changes were detected in total RMS, trefoil, secondary trefoil and coma. A statistically significant increase in quatrefoil, secondary coma, spherical aberration and secondary spherical was found. Conclusion: KeraRing 355 implantation provided significant improvement in UCVA, spherical and cylindrical refractive error, keratometry results and low order aberrations but it was not effective in HOA.

Biography :

Email: a.a.mosavi@gmail.com

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