TY - JOUR
T1 - Measurement of the single-pass modulation transfer function and simulation of the retinal image of the human eye with a newly developed point spread function analysis system
AU - Kobayashi, Katsuhiko
AU - Shibutani, Masahiro
AU - Takeuchi, Gaku
AU - Ohnuma, Kazuhiko
AU - Miyake, Yoichi
AU - Negishi, Kazuno
AU - Ohno, Kenji
AU - Noda, Tohru
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003
Y1 - 2003
N2 - We developed a new point spread function (PSF) analysis system (PSFAS) to study the optical system of the human eye. An infrared point light source is projected on the retina, then the single-pass modulation transfer function (MTF) is derived from the image of incoherent polarized reflection double-pass PSF measured by PSFAS: The retinal images and the contrast characteristics of various sized Landolt's rings then are simulated with the single-pass PSF calculated by the single-pass MTF. The visual acuity (VA) is predicted from the retinal images. The single-pass MTF and the contrast characteristics of aged subjects were clearly lower than those of a young subject in mid-frequency, though the cut-off frequency was similar in the two subjects. The predicted VA from the simulated retinal images agreed with the actual VA in normal subjects and in those with myopic astigmatism. This becomes a useful system for elucidating the optical characteristics of the human eye. In addition, the visual simulation obtained using this system is clinically useful for objectively evaluating visual function.
AB - We developed a new point spread function (PSF) analysis system (PSFAS) to study the optical system of the human eye. An infrared point light source is projected on the retina, then the single-pass modulation transfer function (MTF) is derived from the image of incoherent polarized reflection double-pass PSF measured by PSFAS: The retinal images and the contrast characteristics of various sized Landolt's rings then are simulated with the single-pass PSF calculated by the single-pass MTF. The visual acuity (VA) is predicted from the retinal images. The single-pass MTF and the contrast characteristics of aged subjects were clearly lower than those of a young subject in mid-frequency, though the cut-off frequency was similar in the two subjects. The predicted VA from the simulated retinal images agreed with the actual VA in normal subjects and in those with myopic astigmatism. This becomes a useful system for elucidating the optical characteristics of the human eye. In addition, the visual simulation obtained using this system is clinically useful for objectively evaluating visual function.
KW - Contrast
KW - Incoherent
KW - MTF
KW - Point spread function
KW - Polarization
KW - Retinal image
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U2 - 10.1117/12.477950
DO - 10.1117/12.477950
M3 - Conference article
AN - SCOPUS:0344851804
VL - 4951
SP - 112
EP - 119
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
SN - 0277-786X
T2 - PROGRESS IN BIOMEDICAL OPTICS AND IMAGING: Opthalmic Technologies XIII
Y2 - 25 January 2003 through 26 January 2003
ER -