Effect of even and odd-order aberrations on the accommodation response
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Supported by the Marie Curie Grant FP7-LIFE-ITN-2013-608049-AGEYE Grant; the Atracció de Talent (University of Valencia) Research Scholarship (UV-INV-PREDOC14-179135).

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    Abstract:

    AIM: To investigate the potential effect that odd and even-order monochromatic aberrations may have on the accommodation response of the human eye. METHODS: Eight healthy subjects with astigmatism below 1 D, best corrected visual acuity 20/20 or better and normal findings in an ophthalmic examination were enrolled. An adaptive optics system was used in order to measure the accommodation response of the subjects’ eyes under different conditions: with the natural aberrations being present, and with the odd and even-order aberrations being corrected. Three measurements of accommodation response were monocularly acquired at accommodation demands ranging from 0 to 4 D (0.5 D step). RESULTS: The accommodative lag was greater for the accommodative demands of 1.5, 3, 3.5 and 4 D for the condition in which the even-order aberrations were corrected, in comparison to that obtained for the natural aberrations and corrected odd-order aberrations for the same accommodation demands. No statistically significant differences were found between the accommodation responses under the three conditions. CONCLUSION: The odd and even-order aberrations are not helping the visual system to accommodate, because their partial correction do not affect the accommodation performance.

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Aikaterini I. Moulakaki, Antonio J. Del Águila-Carrasco, José J. Esteve-Taboada, et al. Effect of even and odd-order aberrations on the accommodation response. Int J Ophthalmol, 2017,10(6):955-960

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Publication History
  • Received:October 21,2016
  • Revised:March 07,2017
  • Adopted:
  • Online: June 14,2017
  • Published: