About: LASIK is a research topic. Over the lifetime, 5069 publications have been published within this topic receiving 114073 citations. The topic is also known as: Laser In Situ Keratomileusis & Keratomileusis, Laser In Situ.
TL;DR: A quantitative method can be used to identify eyes at risk for developing ectasia after LASIK that, if validated, represents a significant improvement over current screening strategies.
TL;DR: Iatrogenic keratectasia represents a complication after LASIK that may limit the range of myopia correction and is recommended as a residual corneal thickness of the stromal bed of at least 250 microm.
Abstract: Background Lamellar refractive surgery reduces the biomechanical strength of the cornea which may lead to mechanical instability and keratectasia. Methods Three eyes had laser in situ keratomileusis (LASIK) for myopia from -10.00 to -13.50 D. The procedures were performed with two different wide-field excimer lasers and two different microkeratomes. The patients were followed up to 1 year after surgery. Results Central steep areas developed between 1 and 8 months after surgery. In contrast to conventional central steep islands, these showed rapid progression and were interpreted as keratectasia. Conclusion Iatrogenic keratectasia represents a complication after LASIK that may limit the range of myopia correction. Based on biomechanical considerations we recommend a residual corneal thickness of the stromal bed of at least 250 microm.
TL;DR: Retrospective review of preoperative and postoperative data for each case compared with that of previously reported cases and cases with uneventful postoperative courses found significant risk factors for the development of ectasia after LASIK include high myopia, forme fruste keratoconus, and low RSB.
TL;DR: The cornea is described as a complex structural composite material with pronounced anisotropy and heterogeneity, current understanding of major biomechanical and reparative pathways that contribute to the corneal response to laser vision correction are summarized, and the role of these processes in ectasia, intraocular pressure measurement artifact, diffuse lamellar keratitis (DLK) andCorneal haze is reviewed.
TL;DR: Laser ray tracing is a well-suited, robust, and reliable technique for the evaluation of the change of ocular aberrations with refractive surgery and its impact on image quality.
Abstract: 8 pages, 8 figures.-- PMID: 11328757 [PubMed].-- Open Access full-text paper available at the publisher's site.