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Updated: Jul 2, 2026
Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
Published on: September 16, 2025
Binocular open-view Shack-Hartmann wavefront sensor with consecutive measurements of near triad and spherical
Mariko Kobayashi1, Naoki Nakazawa, Tatsuo Yamaguchi
1Research Institute, Topcon Corporation, 75-1 Hasunuma-cho, Itabashi, Tokyo 174-8580, Japan.
Abstract:
We have developed a binocular open-view Shack-Hartmann wavefront sensor for measuring time variation of binocular accommodation, vergence, pupil sizes (i.e., the binocular near triad), and monochromatic aberrations. The device measures these values16 times per second for up to 1 min. Our purpose is to introduce the new instrument. We have confirmed the accuracy of the device. Refractions for a 4 mm pupil were accurate across the range of measurements of model eyes and normal human eyes. We measured binocular dynamics of accommodation, vergence, and spherical aberrations.
