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J Cataract Refract Surg. 2004 Jan;30(1):26-32.

Flap dimensions created with the IntraLase FS laser.

Author information

1
Gordon Binder Vision Institute, San Diego, CA 92122, USA. garrett@aol.com

Abstract

PURPOSE:

To assess the safety and predictability of the IntraLase femtosecond laser to create accurate flap thickness and diameter.

SETTING:

Clinical office-based practice.

METHODS:

In the first 103 eyes in which flaps were created with the IntraLase laser, the flap thickness was measured by the ultrasonic difference between the preoperative and post-flap-creation central corneal thickness and the flap diameter was measured with calipers.

RESULTS:

As the attempted flap thickness decreased from 140.0 microm to 110.0 microm in 10.0 microm increments, the mean flap thickness decreased from 132.5 microm to 125.0 microm, with standard deviations decreasing from +/-18.5 to +/-12.0 microm. The mean flap diameter differed from the attempted diameter by less than 0.03 microm in all but the 130.0 microm group. Two slipped flaps and 20 cases of interface inflammation occurred early in the series.

CONCLUSIONS:

The IntraLase laser, while adding technical complexity to the laser in situ keratomileusis procedure, is able to predictably create flap diameters, hinge location, and flap thickness while eliminating the risk for cap perforations. The technique of flap elevation affects rapidity of visual recovery.

PMID:
14967265
DOI:
10.1016/S0886-3350(03)00578-9
[Indexed for MEDLINE]

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