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Case Reports
. 2018 Feb;46(2):901-907.
doi: 10.1177/0300060517718989. Epub 2017 Sep 6.

Redo surgery using IntraLase femtosecond laser for treating a decentered laser in situ keratomileusis flap

Yulin Lei  1 , Jie Hou  1 , Xiuyun Zheng  1
Affiliations
Case Reports

Redo surgery using IntraLase femtosecond laser for treating a decentered laser in situ keratomileusis flap

Yulin Lei et al. J Int Med Res. 2018 Feb.

Abstract

Objective Decentered flaps are rarely reported after femtosecond laser-assisted in situ keratomileusis flap procedures. We present a patient with a decentered flap after preparation of a corneal flap using the Femto LDV technique. Methods The 22-year-old man required a redo operation because of a decentered corneal flap. It was performed the same day at the patient's insistence and with his consent. The new corneal flap for the redo surgery was prepared using the femtosecond laser technique and IntraLase. Results Uncorrected visual acuity for each eye was 1.2 during the 12-month follow-up. The results of the Femtosecond laser technique showed good predictability and repeatability regarding the preparation of corneal flaps, but it still may cause some intraoperative complications. Conclusion Once redo surgery is needed, the size and depth of the initially prepared flap should be determined using anterior segment optical coherence tomography to pre-set the parameters for preparation of the redo flap.

Keywords: Decentered flap; Femto LDV; LASIK; optical coherence tomography (OCT); redo surgery; second flap.

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Figures

Figure 1.
Figure 1.
A decentered flap was prepared in the left eye using the Femto LDV technique. The flap diameter was 6.5 mm.
Figure 2.
Figure 2.
Optical coherence tomography shows that the depth of the decentered flap was 119 µm. The corresponding matrix bridge was 439 µm.
Figure 3.
Figure 3.
The flap was successfully prepared using IntraLase. The margin of the flap is clearly seen.
Figure 4.
Figure 4.
The para position of the corneal flap in the left eye is satisfactory 2 h postoperatively, with only slight edema.
Figure 5.
Figure 5.
The epithelium of the flap had healed 2 days postoperatively.
Figure 6.
Figure 6.
Corneal profiles at postoperative day 2 (a) and postoperative day 5 (b).
See this image and copyright information in PMC

References

    1. Durrie DS, Kezirian GM. Femtosecond laser versus mechanical keratome flaps in wavefront-guided laser in situ keratomileusis: prospective contralateral eye study. J Cataract Refract Surg 2005; 31: 120–126. DOI: 10.1016/j.jcrs.2004.09.046. - PubMed
    1. Nordan LT, Slade SG, Baker RN, et al. Femtosecond laser flap creation for laser in situ keratomileusis: six-month follow-up of initial U.S. clinical series. J Refract Surg 2003; 19: 8–14. - PubMed
    1. Muñoz G, Albarrán-Diego C, Sakla HF, et al. Transient light-sensitivity syndrome after laser in situ keratomileusis with the femtosecond laser incidence and prevention. J Cataract Refract Surg 2006; 32: 2075–2079. DOI: 10.1016/j.jcrs.2006.07.024. - PubMed
    1. Lifshitz T, Levy J, Klemperer I, et al. Anterior chamber gas bubbles after corneal flap creation with a femtosecond laser. J Cataract Refract Surg 2005; 31: 2227–2229. DOI: 10.1016/j.jcrs.2004.12.069. - PubMed
    1. Srinivasan S, Herzig S. Sub-epithelial gas breakthrough during femtosecond laser flap creation for LASIK. Br J Ophthalmol 2007; 91: 1373–1373. 2007/09/27. DOI: 10.1136/bjo.2007.129213. - PMC - PubMed

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