Clinical utility of femtosecond laser-assisted astigmatic keratotomy after cataract surgery

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• 作者：Ryohei Nejima ; Yukiko Terada ; Yosai Mori ; Miyuki Ogata…
• 关键词：Astigmatic keratotomy ; Femtosecond laser ; Anterior ; segment OCT
• 刊名：Japanese Journal of Ophthalmology
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：59
• 期：4
• 页码：209-215
• 全文大小：778 KB
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  24.Mayer WJ, Klaproth OK, Hengerer FH, Kook D, Dirisamer M, Priglinger S, et al. In vi
• 作者单位：Ryohei Nejima (1)
  Yukiko Terada (1)
  Yosai Mori (1)
  Miyuki Ogata (1)
  Keiichiro Minami (1)
  Kazunori Miyata (1)
  
  1. Miyata Eye Hospital, 6-3 Kurahara-cho, Miyakonojo, Miyazaki, 885-0051, Japan
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Ophthalmology
  
• 出版者：Springer Japan
• ISSN：1613-2246

文摘

Purpose To examine the clinical utility of femtosecond laser-assisted astigmatic keratotomy (FSL-AK) for eyes after cataract surgery. Methods Eight eyes of 6 patients with an intraocular lens and corneal astigmatism of 2.0 diopters (D) or more underwent FSL-AK. The mean preoperative manifest cylindrical refraction was 2.88?±?0.64?D and the mean corneal astigmatism was 2.84?±?0.83?D. Paired symmetrical arcuate incisions were created with the same settings, except for the incision depth. Uncorrected distance visual acuity (UDVA), manifest cylindrical power, and surgically induced astigmatism (SIA) were measured at 1?day, 1?week, and 1?month postoperatively. Fourier analysis of corneal topography and incision depths measured with anterior-segment optical coherence tomography were evaluated 1?month postoperatively. Results In all eyes, the UDVA improved at 1?week and 1?month postoperatively, and the manifest cylinder also decreased postoperatively, while the SIA showed overcorrections in 6 eyes. Fourier analysis showed decreases in spherical and regular astigmatic components and increases in higher-order irregularity. The mean incision depth was measured as 60?μm deeper than the intended depth. Conclusion The FSL-AK effectively reduced corneal astigmatism and improved the UDVA, although it was demonstrated that the deeper incisions led to overcorrection.