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| Flap-thickness using the SCHWIND Carriazo-Pendular : A comparison with femtosecond laser created flaps and other mechanical microkeratoms |
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| 作者：G. U. Au… 文章来源：Dept. of Ophthalmology University of Heidelberg INF 400 69120 Heidelberg 点击数1290 更新时间：2007/6/4 23:07:10 文章录入：毛进 责任编辑：毛进 |
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| Purpose:To evaluate the flap-thickness in LASIK with the FDA-approved SCHWIND Carriazo-Pendular. Data were compared with pooled data from a ASCRS Survey and data from Femtosecond laser created flaps
Methods:
In this study 120 eyes were analyzed (Data from Schwind User Group). All treatments have been performed with the FDA-approved SCHWIND Carriazo-Pendular and the 110 µm cutting head. Two blades per Patient were used and all eyes were healthy and untreated with a corneal thickness of 500 µm to 600 µm and a k-reading of 41.2 D to 47.5 D. To evaluate the flap-thickness and Standard Deviation (SD) an ultrasonic Pachymeter was used.
Results:
Postoperative excellent flap qualities and a constant flap-thickness’ were shown with an extreme low standard deviation (SD) of 11 µm and a mean flap-thickness of 113 µm. Data fro an ASCRS Survey using leading microkeratom technology showed flap data thickness of 15 to 35 µm standard deviation. Data on Femtosecondlaser created flaps showed standard deviations of 10 to 15µm in experimental as well as clinical studies.
Conclusions:
The Carriazo-Pendular shows excellent results with a very low Standard Deviation. The Pendular Microkeratome cuts predictable thin flaps without complications. Femtosecond laser flaps do not appear to be more precise or better than those of the Pendular.
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