Measurement of wavefront aberration of human eye using talbot image of two-dimensional grating

Ryotaro Sekine, Takashi Shibuya, Kazuhiko Ukai, Shinichi Komatsu, Masayuki Hattori, Toshifumi Mihashi, Naoki Nakazawa, Yoko Hirohara

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    The measurement of human ocular aberration is now frequently performed because of the increase in refractive surgery on the human cornea. The Hartmann-Shack (H-S) wavefront sensor is considered to be the most useful wavefront sensor, and a calculation method for wavefront aberration has been established. New methods of measuring wavefront aberrations of human eyes, using the Talbot image of a two-dimensional grating as a wavefront sensor and local shift of the Talbot image to calculate tilt of the wavefront are shown. The shift of the Talbot image was determined by comparing the phases of fundamental spatial frequency between the grating and the local patch of the Talbot image by Fourier transformation. The actual experiment was performed using a modified commercially available wavefront analyzer. Using these methods, Talbot images were obtained from model eyes and a human eye, and wavefront shapes were successfully reconstructed. Wavefront aberrations can be measured even when the obtained image is degraded by defocusing or scattering.

    Original languageEnglish
    Pages (from-to)207-211
    Number of pages5
    JournalOptical Review
    Volume13
    Issue number4
    DOIs
    Publication statusPublished - 2006 Jul

    Fingerprint

    aberration
    gratings
    sensors
    cornea
    shift
    Fourier transformation
    defocusing
    surgery
    analyzers
    scattering

    Keywords

    • Fourier analysis
    • Human eye
    • Talbot image
    • Two-dimensional grating
    • Wavefront aberration
    • Wavefront sensor

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    Measurement of wavefront aberration of human eye using talbot image of two-dimensional grating. / Sekine, Ryotaro; Shibuya, Takashi; Ukai, Kazuhiko; Komatsu, Shinichi; Hattori, Masayuki; Mihashi, Toshifumi; Nakazawa, Naoki; Hirohara, Yoko.

    In: Optical Review, Vol. 13, No. 4, 07.2006, p. 207-211.

    Research output: Contribution to journalArticle

    Sekine, R, Shibuya, T, Ukai, K, Komatsu, S, Hattori, M, Mihashi, T, Nakazawa, N & Hirohara, Y 2006, 'Measurement of wavefront aberration of human eye using talbot image of two-dimensional grating', Optical Review, vol. 13, no. 4, pp. 207-211. https://doi.org/10.1007/s10043-006-0207-2
    Sekine, Ryotaro ; Shibuya, Takashi ; Ukai, Kazuhiko ; Komatsu, Shinichi ; Hattori, Masayuki ; Mihashi, Toshifumi ; Nakazawa, Naoki ; Hirohara, Yoko. / Measurement of wavefront aberration of human eye using talbot image of two-dimensional grating. In: Optical Review. 2006 ; Vol. 13, No. 4. pp. 207-211.
    @article{edf664a693ae4397bea01919ba2274ac,
    title = "Measurement of wavefront aberration of human eye using talbot image of two-dimensional grating",
    abstract = "The measurement of human ocular aberration is now frequently performed because of the increase in refractive surgery on the human cornea. The Hartmann-Shack (H-S) wavefront sensor is considered to be the most useful wavefront sensor, and a calculation method for wavefront aberration has been established. New methods of measuring wavefront aberrations of human eyes, using the Talbot image of a two-dimensional grating as a wavefront sensor and local shift of the Talbot image to calculate tilt of the wavefront are shown. The shift of the Talbot image was determined by comparing the phases of fundamental spatial frequency between the grating and the local patch of the Talbot image by Fourier transformation. The actual experiment was performed using a modified commercially available wavefront analyzer. Using these methods, Talbot images were obtained from model eyes and a human eye, and wavefront shapes were successfully reconstructed. Wavefront aberrations can be measured even when the obtained image is degraded by defocusing or scattering.",
    keywords = "Fourier analysis, Human eye, Talbot image, Two-dimensional grating, Wavefront aberration, Wavefront sensor",
    author = "Ryotaro Sekine and Takashi Shibuya and Kazuhiko Ukai and Shinichi Komatsu and Masayuki Hattori and Toshifumi Mihashi and Naoki Nakazawa and Yoko Hirohara",
    year = "2006",
    month = "7",
    doi = "10.1007/s10043-006-0207-2",
    language = "English",
    volume = "13",
    pages = "207--211",
    journal = "Optical Review",
    issn = "1340-6000",
    publisher = "Springer-Verlag GmbH and Co. KG",
    number = "4",

    }

    TY - JOUR

    T1 - Measurement of wavefront aberration of human eye using talbot image of two-dimensional grating

    AU - Sekine, Ryotaro

    AU - Shibuya, Takashi

    AU - Ukai, Kazuhiko

    AU - Komatsu, Shinichi

    AU - Hattori, Masayuki

    AU - Mihashi, Toshifumi

    AU - Nakazawa, Naoki

    AU - Hirohara, Yoko

    PY - 2006/7

    Y1 - 2006/7

    N2 - The measurement of human ocular aberration is now frequently performed because of the increase in refractive surgery on the human cornea. The Hartmann-Shack (H-S) wavefront sensor is considered to be the most useful wavefront sensor, and a calculation method for wavefront aberration has been established. New methods of measuring wavefront aberrations of human eyes, using the Talbot image of a two-dimensional grating as a wavefront sensor and local shift of the Talbot image to calculate tilt of the wavefront are shown. The shift of the Talbot image was determined by comparing the phases of fundamental spatial frequency between the grating and the local patch of the Talbot image by Fourier transformation. The actual experiment was performed using a modified commercially available wavefront analyzer. Using these methods, Talbot images were obtained from model eyes and a human eye, and wavefront shapes were successfully reconstructed. Wavefront aberrations can be measured even when the obtained image is degraded by defocusing or scattering.

    AB - The measurement of human ocular aberration is now frequently performed because of the increase in refractive surgery on the human cornea. The Hartmann-Shack (H-S) wavefront sensor is considered to be the most useful wavefront sensor, and a calculation method for wavefront aberration has been established. New methods of measuring wavefront aberrations of human eyes, using the Talbot image of a two-dimensional grating as a wavefront sensor and local shift of the Talbot image to calculate tilt of the wavefront are shown. The shift of the Talbot image was determined by comparing the phases of fundamental spatial frequency between the grating and the local patch of the Talbot image by Fourier transformation. The actual experiment was performed using a modified commercially available wavefront analyzer. Using these methods, Talbot images were obtained from model eyes and a human eye, and wavefront shapes were successfully reconstructed. Wavefront aberrations can be measured even when the obtained image is degraded by defocusing or scattering.

    KW - Fourier analysis

    KW - Human eye

    KW - Talbot image

    KW - Two-dimensional grating

    KW - Wavefront aberration

    KW - Wavefront sensor

    UR - http://www.scopus.com/inward/record.url?scp=33846501621&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=33846501621&partnerID=8YFLogxK

    U2 - 10.1007/s10043-006-0207-2

    DO - 10.1007/s10043-006-0207-2

    M3 - Article

    AN - SCOPUS:33846501621

    VL - 13

    SP - 207

    EP - 211

    JO - Optical Review

    JF - Optical Review

    SN - 1340-6000

    IS - 4

    ER -