Uniformity of the thickness of LASIK corneal flaps made by IntraLase FS 60 laser femtosecond (IntraLase, AMO USA) measured by OCT spectral domain (Heidelberg, Germany)

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Abstract

Purpose

The objective of this study was to appreciate the uniformity of the thickness of Lasik corneal flaps made by The IntraLase FS60 laser femtosecond (IntraLase, AMO USA).

Methods

It was a retrospective, randomized, double-blind study.Twenty eight eyes were included in the study. Every flap was programmed to measure 120 μm. The flaps were measured by Spectral Domain OCT (Heidelberg), one month after surgery in five points on a horizontal line through the center of the pupil (center, 1mm and 2 mm from the center pupil in nasal and temporal) The scheduled and the obtained thicknesses were compared in each point.

Results

Double reading by two different doctors showed no significant difference in the thickness flap measurements (p<0.3). There was no significant difference between the thickness in each point of the flap and the center of the flap.

Conclusion

We have shown in this study that the cutting of a corneal stromal flap with the IntraLase FS 60 laser femtosecond during a LASIK procedure realize uniform flap.

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