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首页> 外文期刊>Journal of refractive surgery >Anterior segment optical coherence tomography measurement of LASIK flaps: femtosecond laser vs microkeratome.
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Anterior segment optical coherence tomography measurement of LASIK flaps: femtosecond laser vs microkeratome.

机译：LASIK皮瓣的前段光学相干断层扫描测量：飞秒激光与微型角膜刀。

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PURPOSE: To compare the uniformity and accuracy of LASIK flaps created with a femtosecond laser versus a mechanical microkeratome using optical coherence tomography (OCT). METHODS: A prospective study was performed on 72 consecutive patients who underwent LASIK in both eyes in alternating fashion with either the AMO IntraLase FS60 (72 eyes) or the Moria M2 microkeratome (72 eyes). One month after surgery, anterior segment OCT was performed on each eye to measure flap thickness at 20 locations and the results were assessed for uniformity and accuracy. RESULTS: At 1 month after surgery, the microkeratome group flap ranges were greater than those found in the femtosecond laser group (P<.05). The meridian and radial flap uniformity in the femtosecond laser group were better, showing an almost planar configuration, than the meniscus-shaped flaps created with the microkeratome. Comparison of the nasal and temporal flap thickness revealed more regularity in the femtosecond laser group than the microkeratome group. The maximum deviation from the intended flap thicknesses was 7 mum in the femtosecond laser group compared to 26 mum in the microkeratome group. During the 1440 measurements of the 72 eyes, a difference >20 mum was observed in 0.42% of eyes in the femtosecond laser group and 15% of eyes in the microkeratome group. CONCLUSIONS: LASIK flaps made with the IntraLase FS60 were more uniform with more accurate thickness than those created by the Moria M2 microkeratome.
机译：目的：比较飞秒激光与使用光学相干断层扫描（OCT）的机械微型角膜刀制作的LASIK皮瓣的均匀性和准确性。方法：一项前瞻性研究是对72例连续的患者进行了前瞻性研究，这些患者均以交替方式用AMO IntraLase FS60（72眼）或Moria M2微型角膜刀（72眼）进行了LASIK。手术后一个月，对每只眼睛进行前节OCT测量20个部位的皮瓣厚度，并评估结果的均匀性和准确性。结果：术后1个月，微角膜刀组的皮瓣范围大于飞秒激光组（P <.05）。飞秒激光组的子午线和径向瓣均匀性好于微角膜刀产生的弯月形瓣，几乎呈平面状。飞秒激光组鼻翼和颞皮瓣厚度的比较显示出比微型角膜刀组更大的规律性。飞秒激光组与预期瓣厚度的最大偏差为7微米，而微型角膜刀组为26微米。在1440次测量中的72只眼睛中，飞秒激光组的0.42％的眼睛和微角膜刀组的15％的眼睛观察到的差异大于20毫米。结论：与Moria M2微型角膜刀所产生的LASIK瓣相比，IntraLase FS60制成的LASIK瓣更均匀，厚度更精确。

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