December 2006
Volume 6, Issue 13
Free
OSA Fall Vision Meeting Abstract  |   December 2006
Changes of natural pupil size and ocular wavefront aberrations under the binocular and the monocular conditions
Author Affiliations
  • Takushi Kawamorita
    Department of Ophthalmology and Visual Science, Kitasato University Graduate School of Medical Sciences, Co, JAPAN
  • Hiroshi Uozato
    Orthoptics and Visual Science, Kitasato University School of Allied Health Sciences
Journal of Vision December 2006, Vol.6, 54. doi:10.1167/6.13.54
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      Takushi Kawamorita, Hiroshi Uozato; Changes of natural pupil size and ocular wavefront aberrations under the binocular and the monocular conditions. Journal of Vision 2006;6(13):54. doi: 10.1167/6.13.54.

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Abstract

Purpose: To investigate how the activity of the natural pupils under the binocular and monocular conditions affects the wavefront aberrations.

Methods: Twelve eyes from 12 subjects (aged 21–24 years; mean 22.2±0.9 years) were included in the study. The undilated pupil diameters under photopic condition (520lx) were measured with an infrared electronic pupillometer FP-10000 (TMI, Japan). Continuous recording of pupil diameters under the binocular and the monocular conditions was performed. Aberrometry measurements were performed with the Hartmann-Shack-based wavefront sensor KR-9000PW (Topcon, Japan). Zernike coefficients were recalculated for the diameters of each pupil under the binocular and monocular conditions with Schwiegerling's algorithm of recalculating the expansion coefficient. Multiple regression analysis was performed to analyze independent predictors of the change of higher order aberration for 6.0mm from the binocular to the monocular condition.

Results: The change of the pupil diameter and the total higher-order aberrations from the binocular condition to the monocular condition were 1.23±0.45 mm and 0.21±0.14 µm respectively (P<.0001). The multiple regression of analysis of variables showed that the change of the total higher order aberration from the binocular to the monocular condition was related to the size of the binocular pupil diameter and the amount of higher order aberrations for 6.0mm (P<.05).

Conclusions: These results suggest that increased pupil diameter in the monocular condition produces higher wavefront aberrations than that in the binocular condition, resulting in worse retinal image quality, and in eyes with larger higher order aberration and pupil diameter the effect would be enhanced.

Kawamorita, T. Uozato, H. (2006). Changes of natural pupil size and ocular wavefront aberrations under the binocular and the monocular conditions [Abstract]. Journal of Vision, 6(13):54, 54a, http://journalofvision.org/6/13/54/, doi:10.1167/6.13.54. [CrossRef]
Footnotes
 Supported in part by a Grant-in-Aid for Exploratory Research (No. 15659416) from the Ministry of Education, Culture, Sports, Science and Technology (HU), and a Grant from the Integrative Research Program (No. 2012) of the Graduate School of Medical Science, Kitasato University (HU) , and a Grant from Kitasato University School of Allied Health Sciences (Grant-in-Aid for Research Project, 2003–2004)(HU).  Supported in part by a Grant-in-Aid for Comprehensive Research on Aging and Health (No. H17-Chouju-012) from the Ministry of Health, Labour and Welfare (HU).
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