December 2002
Volume 43, Issue 13
Free
ARVO Annual Meeting Abstract  |   December 2002
Dynamic Refractometry with Asclepion Aberrometer in the Accommodation process
Author Affiliations & Notes
  • I Pallikaris
    Vardinoyannion Eye Institute
    University of Crete Heraklion Greece
  • S Panagopoulou
    Veic
    University of Crete Heraklion Greece
  • Footnotes
    Commercial Relationships    I. Pallikaris, Asclepion C; S. Panagopoulou, Asclepion C.
Investigative Ophthalmology & Visual Science December 2002, Vol.43, 3945. doi:
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      I Pallikaris, S Panagopoulou; Dynamic Refractometry with Asclepion Aberrometer in the Accommodation process . Invest. Ophthalmol. Vis. Sci. 2002;43(13):3945.

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Abstract

Abstract: : Purpose: To analyze dynamically the process of accommodation using the Asclepion Wavefront Aberrometer. During the process of accommodation of an eye, we measured the low and the higher order aberrations. Methods: In this study we examined 10 eyes. A sophisticated accommodation stimulus was used to measure accommodation in different distances (from far to near). The accommodative eye was recorded continuously while the subject is focused on a moving target. The Wavefront accommodation response is presented during time. We derived information for the lower and the higher order aberrations of each eye in every stage of the accommodation procedure and for center as well as for the periphery of the pupil measured. Results: From the evaluation of the results there is a statistical significant difference (p<0.001) for spherical and coma during accommodation. There is a continuous change in the sphere and high order aberrations with a periodicity and homogeneity during time of fixation. This phenomena are more intensive in the near target fixation. Time of stabilization from far to near and opposite, was also recorded and there is an influence from the age and the refraction of the eyes measured. Conclusion: The procedure of accommodation can be measured dynamically revealing very important information for the role and the contribution of the aberrations during this process.

Keywords: 550 refractive surgery: optical quality 
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