Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment

Mohamed Hosny, Esraa El–Mayah, Mohamed Karim Sidky, Mohamed Anis Department of Ophthalmology, Cairo University, Giza, Egypt Purpose: To compare complete versus incomplete ring implantation for keratoconus correction.Methods: We investigated 25 eyes of keratoconic patients, of which 15 had...

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Autores principales:	Hosny M, El–Mayah E, Sidky MK, Anis M
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2015
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/5c78dedf45f94b85be6112a1a72bc60a
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spelling	oai:doaj.org-article:5c78dedf45f94b85be6112a1a72bc60a2021-12-02T07:49:24ZFemtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment1177-5483https://doaj.org/article/5c78dedf45f94b85be6112a1a72bc60a2015-01-01T00:00:00Zhttp://www.dovepress.com/femtosecond-laser-assisted-implantation-of-complete-versus-incomplete--peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483 Mohamed Hosny, Esraa El–Mayah, Mohamed Karim Sidky, Mohamed Anis Department of Ophthalmology, Cairo University, Giza, Egypt Purpose: To compare complete versus incomplete ring implantation for keratoconus correction.Methods: We investigated 25 eyes of keratoconic patients, of which 15 had femtosecond-assisted MyoRing corneal implantation (Group 1) and 10 had femtosecond-assisted Keraring segments (Group 2). Uncorrected distance visual acuity (UCVA), best corrected distance visual acuity (BCVA), mean K (Km), sphere, topographic cylinder, and corneal asphericity value (Q-value) were measured in all eyes preoperatively and at 4 weeks postoperatively (1 month).Results: In Group 1, the Km change was -6.15±2.16 D, with a mean change in sphere of 4.45±2.18 D and a mean change in refractive cylinder of 2.32±3 D. UCVA change was -0.57±0.273 logarithm of the minimum angle of resolution (LogMAR), BCVA change was -0.2±0.27 (LogMAR), and the Q-value change was 0.43±2.6. In Group 2, the Km change was -3.15±1.68 D, UCVA change was -0.48±0.37 (LogMAR), BCVA change was -0.09±0.15 (LogMAR), and the Q-value change was 0.5±0.21. Changes in the means did not significantly differ between groups, except for the Km change, which was significantly greater in Group 1 than in Group 2 (P=0.05).Conclusion: Both complete ring and ring segment implantation are effective for improving corneal and visual parameters in keratoconus. Complete ring implantation may have a greater flattening effect on the anterior corneal surface. Keywords: KeraRing, MyoRing, keratoconus, femtosecondHosny MEl–Mayah ESidky MKAnis MDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2015, Iss default, Pp 121-127 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Hosny M El–Mayah E Sidky MK Anis M Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment
description	Mohamed Hosny, Esraa El–Mayah, Mohamed Karim Sidky, Mohamed Anis Department of Ophthalmology, Cairo University, Giza, Egypt Purpose: To compare complete versus incomplete ring implantation for keratoconus correction.Methods: We investigated 25 eyes of keratoconic patients, of which 15 had femtosecond-assisted MyoRing corneal implantation (Group 1) and 10 had femtosecond-assisted Keraring segments (Group 2). Uncorrected distance visual acuity (UCVA), best corrected distance visual acuity (BCVA), mean K (Km), sphere, topographic cylinder, and corneal asphericity value (Q-value) were measured in all eyes preoperatively and at 4 weeks postoperatively (1 month).Results: In Group 1, the Km change was -6.15±2.16 D, with a mean change in sphere of 4.45±2.18 D and a mean change in refractive cylinder of 2.32±3 D. UCVA change was -0.57±0.273 logarithm of the minimum angle of resolution (LogMAR), BCVA change was -0.2±0.27 (LogMAR), and the Q-value change was 0.43±2.6. In Group 2, the Km change was -3.15±1.68 D, UCVA change was -0.48±0.37 (LogMAR), BCVA change was -0.09±0.15 (LogMAR), and the Q-value change was 0.5±0.21. Changes in the means did not significantly differ between groups, except for the Km change, which was significantly greater in Group 1 than in Group 2 (P=0.05).Conclusion: Both complete ring and ring segment implantation are effective for improving corneal and visual parameters in keratoconus. Complete ring implantation may have a greater flattening effect on the anterior corneal surface. Keywords: KeraRing, MyoRing, keratoconus, femtosecond
format	article
author	Hosny M El–Mayah E Sidky MK Anis M
author_facet	Hosny M El–Mayah E Sidky MK Anis M
author_sort	Hosny M
title	Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment
title_short	Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment
title_full	Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment
title_fullStr	Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment
title_full_unstemmed	Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment
title_sort	femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment
publisher	Dove Medical Press
publishDate	2015
url	https://doaj.org/article/5c78dedf45f94b85be6112a1a72bc60a
work_keys_str_mv	AT hosnym femtosecondlaserassistedimplantationofcompleteversusincompleteringsforkeratoconustreatment AT elmayahe femtosecondlaserassistedimplantationofcompleteversusincompleteringsforkeratoconustreatment AT sidkymk femtosecondlaserassistedimplantationofcompleteversusincompleteringsforkeratoconustreatment AT anism femtosecondlaserassistedimplantationofcompleteversusincompleteringsforkeratoconustreatment
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Femtosecond laser-assisted implantation of complete versus incomplete rings for keratoconus treatment

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