1. Femtosecond laser-assisted deep anterior lamellar keratoplasty with big-bubble technique for keratoconus.
- Author
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Yan Lu, Xiangfei Chen, Liping Yang, Chunyan Xue, Zhenping Huang, Lu, Yan, Chen, Xiangfei, Yang, Liping, Xue, Chunyan, and Huang, Zhenping
- Subjects
KERATOCONUS ,CORNEA surgery ,FEMTOSECOND lasers ,LASER surgery ,VISUAL acuity ,OPHTHALMIC surgery complications ,THERAPEUTICS ,CORNEA ,CORNEA diseases ,CORNEAL transplantation ,CORNEAL topography ,EYE examination ,MEDICAL lasers ,ORGAN donors ,SURGICAL complications ,TRANSPLANTATION of organs, tissues, etc. - Abstract
Purpose: The purpose of this study was to evaluate the clinical results after deep anterior lamellar keratoplasty (DALK) assisted by the femtosecond laser with big-bubble technique for keratoconus.Methods: A case series of 22 eyes in 19 patients with keratoconus was enrolled in the study. The 500-kHz VisuMax femtosecond laser (Carl Zeiss Meditec AG, Jena, Germany) was used to create a vertical side cut on donor and recipient corneas. Intraoperative and postoperative complications, uncorrected visual acuity, best-corrected visual acuity, corneal curvature, and central corneal thickness were evaluated in all patients.Results: Big-bubble and naked Descemet's membrane (DM) were successfully achieved in twenty eyes (90.9%). Intraoperative macroperforation of DM occurred in two cases and converted to full-thickness keratoplasty. The mean follow-up time was 18.8 ± 5.3 months. The best-corrected visual acuity was increased from 0.3 to 1.0, mean corneal curvature was 43.0 ± 2.3D, and mean central corneal thickness was 508.9 ± 60.1 μm (range, from 430 to 600 μm) postoperatively.Conclusion: Our results indicate that femtosecond laser-assisted DALK with big-bubble technique is an accurate, safe, and effective method to treat the patients with keratoconus. [ABSTRACT FROM AUTHOR]- Published
- 2016
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