New combined technique of deep intrastromal arcuate keratotomy overlayed by LASIK flap for treatment of high astigmatism
| Autor: | Laurent Laroche, Otman Sandali, Vincent Borderie, Patrick Loriaut, Mohamed El Sanharawi, Isabelle Goemaere |
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| Rok vydání: | 2014 |
| Předmět: |
Novel technique
Adult Male medicine.medical_specialty Materials science medicine.medical_treatment Corneal Stroma Keratomileusis Laser In Situ Visual Acuity Photoablation Combined technique Excimer Surgical Flaps High astigmatism Young Adult Optics Ophthalmology medicine Humans business.industry Arcuate keratotomy LASIK Astigmatism Middle Aged Female Lasers Excimer business Tomography Optical Coherence |
| Zdroj: | Cornea. 33(10) |
| ISSN: | 1536-4798 |
| Popis: | The aim of this study was to describe a novel technique combining deep intrastromal arcuate keratotomy and superficial lamellar keratotomy followed by excimer photoablation for the management of high naturally occurring or postkeratoplasty astigmatism.In this retrospective case series, the first step was deep intrastromal arcuate keratotomy and superficial lamellar keratotomy performed at 100-μm depth by femtosecond laser. Manual incisions were made for flap elevation. The second step, after 1 month, consisted of reopening the flap and using an excimer laser to correct residual ametropia.Nine eyes series were studied. The mean preoperative refractive cylinder correction was 6.11 ± 2.54 diopters (D). The mean postoperative refractive cylinder correction was 2.85 ± 1.31 D. The mean correction index was 1.07 ± 0.28 D. The mean best-corrected visual acuity improved from 20/40 to 20/22 after the 2 steps. The median follow-up was 11 (range, 9-17) months. No complications were observed and postoperative outcome was satisfactory.Permitting correction of a broader range of high astigmatism with good accuracy, this combined approach minimizes excision of corneal stromal tissue and postoperative complications. |
| Databáze: | OpenAIRE |
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