Korean J Ophthalmol.  2002 Dec;16(2):63-69. 10.3341/kjo.2002.16.2.63.

Clinical feature of unintended thin corneal flap in LASIK: 1-year follow-up

• Yeo HE
• Song BJ

• KMID: 754323
• DOI: http://doi.org/10.3341/kjo.2002.16.2.63

Abstract

To purpose of this study was to evaluate complications of unintended thin corneal flap in laser in situ keratomileusis (LASIK), such as visual acuity and myopic regression, at the one year follow-up. We performed a study on 54 eyes, i.e. 27 patients, having LASIK. The eyes were split into two groups, group one, 27 eyes with unintended thin corneal flap with a thickness of 100 microm or less, and as a control group, 27 eyes with a thickness of 110 microm or more. The average corneal flap thicknesses of the two groups were 88.89 +/- 8.07 microm and 132.70 +/- 19.58 microm, respectively. With regard to postoperative complications, there were no statistical differences between the groups for: foreign bodies in aspects of the interface, mild peripheral infiltration, superficial punctuate keratitis, myopic regression and decreased vision. The only complication showing any statistical difference between the two groups was the central corneal opacity. An unintended thin corneal flap, with an intact Bowman's layer, induced no significant postoperative complications. Central corneal opacity was apparent in 4 of the eyes in group one, so may be related with a thin corneal flap.

Keyword

corneal flap thickness; corneal opacity; LASIK; thin corneal flap

MeSH Terms

Adult
Comparative Study
Cornea/surgery
Corneal Opacity/*etiology
Follow-Up Studies
Human
Keratomileusis, Laser In Situ/*adverse effects
Myopia/surgery
*Postoperative Complications
Surgical Flaps/*adverse effects
Treatment Outcome
Visual Acuity