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Correction of the aberrations in the human eyes with SVAG1 thin-film transistor liquid-crystal display

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SVAG1 thin-film transistor liquid-crystal display (TFT-LCD) is used as a corrector of the wave aberrations in the human eyes based on the evaluation of its phase modulation properties in this paper. The wave aberrations in human eyes across 5.2 mm pupil for two subjects are first measured with Hartmann-Shack wave-front sensor and then are successfully corrected with the SVAG1 TFT-LCD. The peak-to-valley wave-front errors of the eyes are reduced by a factor of approximate three and close to the Rayleigh quarter-wave criterion by the correction. It is shown with the modulation transfer function (MTF) analysis that the ultimate resolution of the eyes increases respectively from 17 c/deg to 38 c/deg and from 14 c/deg to 36 c/deg for two subjects, which is even higher than the optimum resolution of the normal eyes (approximate 30 c/deg) and implies a supernormal vision is achieved. Therefore the SVAG1 TFT-LCD is a promising device in the closed-loop adaptive optics system to perform wave-front compensation to achieve supernormal vision and high-resolution retinal imaging.
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Document Type: Research Article

Affiliations: 1: United Academy of Nankai University and Tianjin University, The Key Laboratory of Opto-electronic Information Science and Technology, Institute of Modern Optics, Nankai University, Tianjin 30071, P.R. of China 2: Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, P.R. of China

Publication date: 2004-02-01

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