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

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 ultra...

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Autores principales: Karabela, Yunus, Muftuoglu, Orkun, Kaya, Faruk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove Medical Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5344407/
https://www.ncbi.nlm.nih.gov/pubmed/28424534
http://dx.doi.org/10.2147/OPTH.S129830
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author Karabela, Yunus
Muftuoglu, Orkun
Kaya, Faruk
author_facet Karabela, Yunus
Muftuoglu, Orkun
Kaya, Faruk
author_sort Karabela, Yunus
collection PubMed
description 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.
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spelling pubmed-53444072017-04-19 Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures Karabela, Yunus Muftuoglu, Orkun Kaya, Faruk Clin Ophthalmol Original Research 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. Dove Medical Press 2017-03-03 /pmc/articles/PMC5344407/ /pubmed/28424534 http://dx.doi.org/10.2147/OPTH.S129830 Text en © 2017 Karabela et al. This work is published and licensed by Dove Medical Press Limited The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.
spellingShingle Original Research
Karabela, Yunus
Muftuoglu, Orkun
Kaya, Faruk
Corneal flap thickness with the Moria M2 single-use head 90 microkeratome in 72 consecutive LASIK procedures
title 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_short 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
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5344407/
https://www.ncbi.nlm.nih.gov/pubmed/28424534
http://dx.doi.org/10.2147/OPTH.S129830
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