July 2018
Volume 59, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2018
Spherical Aberration as a Function of Refractive Shift in Mesopic Luminance
Author Affiliations & Notes
  • Philipp Hessler
    Ernst-Abbe-University of Applied Sciences Jena, Klingenberg, Germany
  • Maria Stinn
    Ernst-Abbe-University of Applied Sciences Jena, Klingenberg, Germany
  • Josefine Dolata
    Ernst-Abbe-University of Applied Sciences Jena, Klingenberg, Germany
  • Stephan Degle
    Ernst-Abbe-University of Applied Sciences Jena, Klingenberg, Germany
  • Footnotes
    Commercial Relationships   Philipp Hessler, IGA OPTIC eG (R); Maria Stinn, IGA OPTIC eG (R); Josefine Dolata, IGA OPTIC eG (R); Stephan Degle, IGA OPTIC eG (R)
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science July 2018, Vol.59, 2146. doi:
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      Philipp Hessler, Maria Stinn, Josefine Dolata, Stephan Degle; Spherical Aberration as a Function of Refractive Shift in Mesopic Luminance. Invest. Ophthalmol. Vis. Sci. 2018;59(9):2146.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : The increase of spherical aberration with enlarging human pupils is discussed as a reason for a myopic refractive shift in mesopic light conditions. Aim of this study was to investigate the correlation between spherical aberration and subjective refraction in mesopic luminance.

Methods : Right eyes of 96 subjects aged from 18 to 40 were analyzed in this prospective study. For aberrometric determination of spherical aberration and objective refraction data a Hartmann-Shack aberrometer Visionix VX 120 (Luneau Technology SAS, France) was used. Aberrometry data were collected for 3 mm and maximum pupil size. Subjective refraction was obtained under both, photopic and mesopic light conditions. In this course, pupil size was tracked with an infrared camera.

Results : Aberrometric spherical equivalent change between 3 mm pupil size and maximum pupil size was -0.24 ± 0.32 D (p<0.001). In subjective refraction, spherical equivalent shift in mesopic light conditions was -0.28 ± 0.17 D (p<0.001). However, aberrometric refractive shifts were not comparable to subjective refractive shifts. There was a strong correlation between spherical aberration and pupil-size dependent aberrometric refractive shift (r=0.949, p<0.001) but a weak correlation between spherical aberration and subjective luminance-dependent refractive shift (r = 0.330, p<0.01).

Conclusions : The impact of spherical aberration on subjective night myopia is not significant. According to the results of this study, for optometry, the relevance of theoretical physical calculation models based on aberrometry should be reconsidered.

This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.

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