Comparison of wavefront-guided aspheric laser in situ keratomileusis for myopia: coaxially sighted corneal-light-reflex versus line-of-sight centration
| Autor: | Kaku Kimura, Shigeki Okamoto, Masakazu Funakura, Hiroyuki Hiramatsu, Nobuo Ikeda, Harkaran S Bains |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
Male medicine.medical_specialty Corneal Wavefront Aberration genetic structures Light medicine.medical_treatment media_common.quotation_subject Keratomileusis Laser In Situ Visual Acuity Keratomileusis Refraction Ocular law.invention Contrast Sensitivity law Ophthalmology Chart review medicine Myopia Contrast (vision) Humans Corneal reflex Dioptre media_common Wavefront Blinking business.industry Aberrometry Corneal Topography Pupil Laser Centration eye diseases Sensory Systems Optometry Surgery Female Lasers Excimer sense organs business |
| Zdroj: | Journal of cataract and refractive surgery. 37(11) |
| ISSN: | 1873-4502 |
| Popis: | Purpose To compare refractive outcomes, higher-order aberrations (HOAs), and contrast sensitivity of myopic wavefront-guided aspheric laser in situ keratomileusis centered on the coaxially sighted corneal light reflex or on the line of sight. Setting Okamoto Eye Clinic, Ehime, Japan. Design Comparative case series. Methods Data at 3 months were compared based on the distance between the coaxially sighted corneal light reflex and the line of sight (P-distance) as follows: distance greater than 0.25 mm (high-distance group), distance greater than 0.15 mm and less than 0.25 mm (intermediate-distance group), and distance less than 0.15 mm (low distance group). Results The chart review included 317 eyes in the corneal-light-reflex group and 269 eyes in the line-of-sight group. The mean postoperative manifest refraction spherical equivalent was +0.123 diopter (D) ± 0.378 (SD) and +0.187 ± 0.480 D, respectively ( P =.07). The safety and efficacy indices were significantly higher in the corneal-light-reflex group, including the high-distance subgroup and eyes with a P-distance less than 0.25 mm ( P P P =.001) were significantly higher in the line-of-sight group ( P P =.001, respectively). The line-of-sight group had a significantly greater change in contrast sensitivity ( P =.026). Conclusions Centration on the coaxially sighted corneal light reflex resulted in better safety, effectiveness, and contrast sensitivity than line-of-sight centration. Centration on the coaxially sighted corneal light reflex was safer for myopic eyes with P-distances greater than 0.25 mm. Financial Disclosure No author has a financial or proprietary interest in any material or method mentioned. Additional disclosures are found in the footnotes. |
| Databáze: | OpenAIRE |
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