$Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up$
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Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up

Mohamed A Heikal, Marwa Abdelshafy, Tarek T Soliman, Abdelmonem M Hamed Department of Ophthalmology, Benha University, Banha, Egypt Purpose: We attempted to evaluate the efficacy of femtosecond laser-assisted intrastromal corneal ring segment implantation in patients with keratoconus (KC). Patient...

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Autores principales:	Heikal MA, Abdelshafy M, Soliman TT, Hamed AM
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	Corneal astigmatism Femtosecond laser Keraring Spherical error Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/7fbca38ee45348258faab4b1f0886ca7
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spelling	oai:doaj.org-article:7fbca38ee45348258faab4b1f0886ca72021-12-02T05:26:47ZRefractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up1177-5483https://doaj.org/article/7fbca38ee45348258faab4b1f0886ca72016-12-01T00:00:00Zhttps://www.dovepress.com/refractive-and-visual-outcomes-after-keraring-intrastromal-corneal-rin-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Mohamed A Heikal, Marwa Abdelshafy, Tarek T Soliman, Abdelmonem M Hamed Department of Ophthalmology, Benha University, Banha, Egypt Purpose: We attempted to evaluate the efficacy of femtosecond laser-assisted intrastromal corneal ring segment implantation in patients with keratoconus (KC). Patients and methods: A retrospective interventional consecutive clinical study was conducted on patients with KC who were treated with femtosecond laser Keraring implantation. All procedures were performed at Ebsar Eye Center in the period from January 5, 2015, to February 28, 2016. Results: Thirty eyes of 20 patients were included in this study. The mean age of patients was 27.43±3.57 years. Eleven patients (55%) were female and nine patients (45%) were male. Keraring segments were successfully implanted in all eyes. There were no complications or need for ring repositioning. The follow-up period was 6 months postoperatively. There was a significant improvement in the mean logarithm of the minimum angle of resolution (LogMAR) of uncorrected visual acuity (UCVA) after Keraring segment implantation from 1.5±0.23 preoperatively to 0.54±0.16 at 6 months postoperatively (P=0.001). The preoperative mean LogMAR of best-corrected visual acuity (BCVA) was 0.85±0.17. At 1 month postoperatively, it was 0.35±0.15; at 3 months postoperatively, it was 0.26±0.11, and at 6 months postoperatively, it was 0.14±0.07 (P=0.001). The mean preoperative maximum keratometric value for 3 mm pupil in diopters (K max) significantly decreased from 55.85±5.44 preoperatively (N=30) to 44.05±1.64 D at 6 months postoperatively (P=0.001). There was a statistically significant reduction in the mean preoperative spherical equivalent from –5.43±1.76 D preoperatively to –2.43±0.95 D at 6 months postoperatively. No statistically significant differences were detected between 1 and 3 months of follow-up regarding the visual and refractive outcomes. Conclusion: Analysis of the outcomes after Keraring ICRS implantation showed a significant postoperative corneal flattening with a subsequent increase in UCVA and BCVA. Using the femtosecond laser for tunnel creation made the procedure easy and fast with an accurate precise depth of implantation and reduced the risk of operative and postoperative complications. Keywords: femtosecond laser, K astigmatism Keraring, spherical errorHeikal MAAbdelshafy MSoliman TTHamed AMDove Medical PressarticleCorneal astigmatismFemtosecond laserKeraringSpherical errorOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 11, Pp 81-86 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Corneal astigmatism Femtosecond laser Keraring Spherical error Ophthalmology RE1-994
spellingShingle	Corneal astigmatism Femtosecond laser Keraring Spherical error Ophthalmology RE1-994 Heikal MA Abdelshafy M Soliman TT Hamed AM Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up
description	Mohamed A Heikal, Marwa Abdelshafy, Tarek T Soliman, Abdelmonem M Hamed Department of Ophthalmology, Benha University, Banha, Egypt Purpose: We attempted to evaluate the efficacy of femtosecond laser-assisted intrastromal corneal ring segment implantation in patients with keratoconus (KC). Patients and methods: A retrospective interventional consecutive clinical study was conducted on patients with KC who were treated with femtosecond laser Keraring implantation. All procedures were performed at Ebsar Eye Center in the period from January 5, 2015, to February 28, 2016. Results: Thirty eyes of 20 patients were included in this study. The mean age of patients was 27.43±3.57 years. Eleven patients (55%) were female and nine patients (45%) were male. Keraring segments were successfully implanted in all eyes. There were no complications or need for ring repositioning. The follow-up period was 6 months postoperatively. There was a significant improvement in the mean logarithm of the minimum angle of resolution (LogMAR) of uncorrected visual acuity (UCVA) after Keraring segment implantation from 1.5±0.23 preoperatively to 0.54±0.16 at 6 months postoperatively (P=0.001). The preoperative mean LogMAR of best-corrected visual acuity (BCVA) was 0.85±0.17. At 1 month postoperatively, it was 0.35±0.15; at 3 months postoperatively, it was 0.26±0.11, and at 6 months postoperatively, it was 0.14±0.07 (P=0.001). The mean preoperative maximum keratometric value for 3 mm pupil in diopters (K max) significantly decreased from 55.85±5.44 preoperatively (N=30) to 44.05±1.64 D at 6 months postoperatively (P=0.001). There was a statistically significant reduction in the mean preoperative spherical equivalent from –5.43±1.76 D preoperatively to –2.43±0.95 D at 6 months postoperatively. No statistically significant differences were detected between 1 and 3 months of follow-up regarding the visual and refractive outcomes. Conclusion: Analysis of the outcomes after Keraring ICRS implantation showed a significant postoperative corneal flattening with a subsequent increase in UCVA and BCVA. Using the femtosecond laser for tunnel creation made the procedure easy and fast with an accurate precise depth of implantation and reduced the risk of operative and postoperative complications. Keywords: femtosecond laser, K astigmatism Keraring, spherical error
format	article
author	Heikal MA Abdelshafy M Soliman TT Hamed AM
author_facet	Heikal MA Abdelshafy M Soliman TT Hamed AM
author_sort	Heikal MA
title	Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up
title_short	Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up
title_full	Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up
title_fullStr	Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up
title_full_unstemmed	Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up
title_sort	refractive and visual outcomes after keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/7fbca38ee45348258faab4b1f0886ca7
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Refractive and visual outcomes after Keraring intrastromal corneal ring segment implantation for keratoconus assisted by femtosecond laser at 6 months follow-up

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