May 2004
Volume 45, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2004
Outcomes of wavefront–guided LASIK depending on preoperative value of higher–order aberration
Author Affiliations & Notes
  • T. Suzuki
    Department of Ophthalmology, Tokyo Dental College Suidobashi Hospital, Chiyoda–Ku, Tokyo, Japan
  • H. Bissen–Miyajima
    Department of Ophthalmology, Tokyo Dental College Suidobashi Hospital, Chiyoda–Ku, Tokyo, Japan
  • T. Nakamura
    Department of Ophthalmology, Tokyo Dental College Suidobashi Hospital, Chiyoda–Ku, Tokyo, Japan
  • T. Kikuchi
    Department of Ophthalmology, Tokyo Dental College Suidobashi Hospital, Chiyoda–Ku, Tokyo, Japan
  • K. Ohnuma
    Faculty of Engineering, Chiba University, Chiba, Japan
  • Footnotes
    Commercial Relationships  T. Suzuki, None; H. Bissen–Miyajima, None; T. Nakamura, None; T. Kikuchi, None; K. Ohnuma, None.
  • Footnotes
    Support  none
Investigative Ophthalmology & Visual Science May 2004, Vol.45, 205. doi:
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    • Get Citation

      T. Suzuki, H. Bissen–Miyajima, T. Nakamura, T. Kikuchi, K. Ohnuma; Outcomes of wavefront–guided LASIK depending on preoperative value of higher–order aberration . Invest. Ophthalmol. Vis. Sci. 2004;45(13):205.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Abstract: : Purpose: To evaluate the difference in postoperative outcome of higher–order aberration ( HOA ) depending on their preoperative value. Methods: Forty–one eyes underwent wavefront–guided LASIK. Mean preoperative spherical equivalent was –3.6D±2.2D ( range –1.5D∼ –11.5D ). HOA were measured and calculated using the wavefront analyzer ( Wavescan ® ) after 10 minutes adaptation in the dark room. The eyes were divided into 2 groups according to the value of preoperative HOA; low RMS group (0.4µm>)and high RMS group (0.4µm≤ ). In addition, patient’s vision with different HOA was simulated using our original software. Results: In all eyes of low RMS group, HOA as well as coma and trefoil aberrations increased postoperatively. Average HOA was significantly increased from 0.25µm to 0.42µm ( p<0.01 ). On the other hand, all eyes of high RMS group showed lower value of HOA, coma and trefoil aberrations postoperatively. Average HOA was significantly decreased from 0.57µm to 0.42µm (p=0.037 ). Both groups showed increased spherical aberration ( low RMS group: from 0.08µm to 0.19µm, high RMS group: from 0.10µm to 0.15µm). The patient’s images calculated from this result are helpful for surgeons to understand the difference between preoperative and postoperative visual quality. Conclusions: The value of postoperative HOA showed significant difference depending on preoperative value. Further clinical evaluation is necessary to improve patient’s visual quality.

Keywords: refractive surgery: comparative studies 
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