A thin, irregular, or buttonhole flap is a significant complication of lamellar surgery that typically calls for aborting the case. Thin, irregular or buttonhole flaps can occur with all keratomes, including the new femtosecond devices. The cause of a thin, irregular, or buttonhole flap is often unclear and can be multifactorial. Causes of a thin, irregular, or buttonhole flap may include low pressure, poor corneal lubrication, poor blade quality, preexisting corneal pathology, or a keratome malfunction. Most thin, irregular, or buttonhole flap cases can be redone with either LASIK or PRK and do have a good prognosis. Remember, the key when faced with a poor flap typically is not to ablate. © 2008 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Slade, S. G., Wu, H. K., Allam, W. A., Baviera, J., & Hardten, D. R. (2008). LASIK: Intraoperative (Flap) complications. In Management of Complications in Refractive Surgery (pp. 15–31). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-37584-5_3
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