Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures

Yunus Karabela,1 Orkun Muftuoglu,2 Faruk Kaya1 1Department of Ophthalmology, Medipol University, 2Department of Ophthalmology, Vehbi Koç Vakfi Amerikan Hospital, Istanbul, Turkey Purpose: This study aimed to evaluate the accuracy and consistency of corneal flap thickness in laser-assist...

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Autores principales:	Karabela Y, Muftuoglu O, Kaya F
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2017
Materias:	laser in situ keratomileusis LASIK microkeratome Moria M2 single-use head flap thickness Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/c2ecbf7eb14d49ffa77b79b5ad898dbe
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spelling	oai:doaj.org-article:c2ecbf7eb14d49ffa77b79b5ad898dbe2021-12-02T07:30:45ZCorneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures1177-5483https://doaj.org/article/c2ecbf7eb14d49ffa77b79b5ad898dbe2017-03-01T00:00:00Zhttps://www.dovepress.com/corneal-flap-thickness-with-the-moria-m2-single-use-head-90-microkerat-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Yunus Karabela,1 Orkun Muftuoglu,2 Faruk Kaya1 1Department of Ophthalmology, Medipol University, 2Department of Ophthalmology, Vehbi Koç Vakfi Amerikan Hospital, Istanbul, Turkey Purpose: This study aimed to evaluate the accuracy and consistency of corneal flap thickness in laser-assisted in situ keratomileusis (LASIK) with the Moria M2 single-use head 90 microkeratome. Methods: The central corneal thickness of 72 (37 right, 35 left) eyes of 37 patients was measured by ultrasonic pachymetry preoperatively and intraoperatively after flap cut. The Moria M2 single-use head 90 microkeratome was used to create a superior hinged flap in all eyes. The right eyes were always operated on before the left eyes in each patient, using the same blade in all bilateral cases. All patients underwent LASIK for myopia and/or myopic astigmatism using VISX Star S4 platform. Results: The mean preoperative spherical equivalent refraction was -3.55±2.30 D (range: -0.625 to -11.00 D), preoperative central corneal thickness by ultrasonic pachymetry was 541±26.82 µm (490–600 µm) and steepest K was 44.08±1.49 D (40–46.75 D) in all eyes. The mean flap thickness was 136.97±20.07 µm (106–192 µm), 131.2±19.5 µm (91–192 µm), and 134.16±19.85 µm (91–192 µm) in the right, left, and both eyes, respectively. A positive significant relationship was found between flap thickness and preoperative ultrasonic pachymetry thickness. No significant relationship was found between flap thickness and the age, preoperative spherical equivalent, and preoperative steepest K. The difference between the first and second eyes was not significant. There were no major intraoperative and postoperative complications in all eyes. Conclusion: The Moria M2 single-use head 90 microkeratome cut relatively thicker flaps than were intended. The flap thickness range was quite wide. This was a disadvantage for the accuracy and consistency of corneal flap thickness. Keywords: flap thickness, laser-assisted in situ keratomileusis, LASIK, microkeratome, Moria M2 single-use headKarabela YMuftuoglu OKaya FDove Medical Pressarticlelaser in situ keratomileusisLASIKmicrokeratomeMoria M2 single-use headflap thicknessOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 11, Pp 487-492 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	laser in situ keratomileusis LASIK microkeratome Moria M2 single-use head flap thickness Ophthalmology RE1-994
spellingShingle	laser in situ keratomileusis LASIK microkeratome Moria M2 single-use head flap thickness Ophthalmology RE1-994 Karabela Y Muftuoglu O Kaya F Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures
description	Yunus Karabela,1 Orkun Muftuoglu,2 Faruk Kaya1 1Department of Ophthalmology, Medipol University, 2Department of Ophthalmology, Vehbi Koç Vakfi Amerikan Hospital, Istanbul, Turkey Purpose: This study aimed to evaluate the accuracy and consistency of corneal flap thickness in laser-assisted in situ keratomileusis (LASIK) with the Moria M2 single-use head 90 microkeratome. Methods: The central corneal thickness of 72 (37 right, 35 left) eyes of 37 patients was measured by ultrasonic pachymetry preoperatively and intraoperatively after flap cut. The Moria M2 single-use head 90 microkeratome was used to create a superior hinged flap in all eyes. The right eyes were always operated on before the left eyes in each patient, using the same blade in all bilateral cases. All patients underwent LASIK for myopia and/or myopic astigmatism using VISX Star S4 platform. Results: The mean preoperative spherical equivalent refraction was -3.55±2.30 D (range: -0.625 to -11.00 D), preoperative central corneal thickness by ultrasonic pachymetry was 541±26.82 µm (490–600 µm) and steepest K was 44.08±1.49 D (40–46.75 D) in all eyes. The mean flap thickness was 136.97±20.07 µm (106–192 µm), 131.2±19.5 µm (91–192 µm), and 134.16±19.85 µm (91–192 µm) in the right, left, and both eyes, respectively. A positive significant relationship was found between flap thickness and preoperative ultrasonic pachymetry thickness. No significant relationship was found between flap thickness and the age, preoperative spherical equivalent, and preoperative steepest K. The difference between the first and second eyes was not significant. There were no major intraoperative and postoperative complications in all eyes. Conclusion: The Moria M2 single-use head 90 microkeratome cut relatively thicker flaps than were intended. The flap thickness range was quite wide. This was a disadvantage for the accuracy and consistency of corneal flap thickness. Keywords: flap thickness, laser-assisted in situ keratomileusis, LASIK, microkeratome, Moria M2 single-use head
format	article
author	Karabela Y Muftuoglu O Kaya F
author_facet	Karabela Y Muftuoglu O Kaya F
author_sort	Karabela Y
title	Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures
title_short	Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures
title_full	Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures
title_fullStr	Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures
title_full_unstemmed	Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures
title_sort	corneal flap thickness with the moria m2 single-use head 90 microkeratome in 72 consecutive lasik procedures
publisher	Dove Medical Press
publishDate	2017
url	https://doaj.org/article/c2ecbf7eb14d49ffa77b79b5ad898dbe
work_keys_str_mv	AT karabelay cornealflapthicknesswiththemoriam2singleusehead90microkeratomein72consecutivelasikprocedures AT muftuogluo cornealflapthicknesswiththemoriam2singleusehead90microkeratomein72consecutivelasikprocedures AT kayaf cornealflapthicknesswiththemoriam2singleusehead90microkeratomein72consecutivelasikprocedures
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Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures

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