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Artigo Revisado por pares
BIBTEX RIS

Microkeratome Blades and Corneal Flap Thickness in Lasik

2008; Volume: 39; Issue: 6 Linguagem: Inglês

10.3928/15428877-20081101-19

ISSN

2325-8179

Autores

Chi-Wang Yau, Huey-Chuan Cheng,

Tópico(s)

Ophthalmology and Visual Impairment Studies

Resumo

<div class="ftSection"><span class="ftInlineSubsectionTitle">Background and Objective:</span><p>To determine the corneal flap thickness produced by using two different types of blades on the same microkeratome for LASIK, comparing flap thickness in the first and second eyes.</p></div><div class="ftSection"><span class="ftInlineSubsectionTitle">Patients and Methods:</span><p>The corneal flap thickness was measured in two sets of 100 consecutive patients undergoing bilateral LASIK procedures using the Moria M2 microkeratome with a 110 head (Moria, France) and either Moria or CLB blades (Med-Logics Inc., Laguna Hills, CA). Corneal flap thickness was determined by intraoperative pachymetry using an ultrasonic pachymeter.</p></div><div class="ftSection"><span class="ftInlineSubsectionTitle">Results:</span><p>The mean corneal flap thickness was 138.95 ± 21.6 μm (range: 75–205 μm) with Moria blades and 115.07 ± 16.0 μm (range: 70–153 μm) with CLB blades, which is a significant difference (<italic>P</italic> &lt; .001). The difference in flap thickness between the first and second eyes was not significant with the Moria blades (141.46 ± 21.46 μm vs 136.45 ± 21.55 μm, <italic>P</italic> = .965), but it was when the CLB blades were used (123.21 ± 12.07 μm vs 106.93 ± 15.51 μm; <italic>P</italic> = .013).</p></div><div class="ftSection"><span class="ftInlineSubsectionTitle">Conclusion:</span><p>In LASIK surgery using a Moria M2 microkeratome, blades from different manufacturers may produce significantly different corneal flap thicknesses, as well as differences between the first and second eyes.</p></div>

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