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Related Experiment Videos

Objective measurement of wavefront aberrations with and without accommodation.

L G Pallikaris1, S I Panagopoulou, C S Siganos

  • 1Vardinoyannion Eye Institute of Crete, University of Crete, Greece. pallikar@med.uoc.gr

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|October 5, 2001
PubMed
Summary

The Tracey-1 refractometer effectively measures dynamic changes in refractive aberrations during accommodation. This technology aids in understanding complex refractive surgery by evaluating accommodation in the eye.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Biomedical Engineering

Background:

  • Refractive error profiling offers deeper insights into refractive surgery than corneal topography.
  • The Tracey-1 spatially resolved refractometer was developed through international collaboration.

Purpose of the Study:

  • To evaluate the effectiveness of the Tracey-1 refractometer for dynamic accommodation measurements.
  • To assess the utility of refractive error profiling in understanding refractive surgery complexities.

Main Methods:

  • Dynamic accommodation measurements were performed on ten eyes using the Tracey-1 refractometer.
  • Refractive aberrations were calculated and accommodation was evaluated within 0 to 6 mm zones.

Main Results:

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  • The Tracey-1 instrument demonstrated the capability to track dynamic changes in refractive aberrations during accommodation.
  • Data analysis confirmed the instrument's effectiveness in monitoring accommodative processes.

Conclusions:

  • Clinical testing validated the Tracey technology for investigating ocular accommodation.
  • Spatially resolved refractometry provides valuable data for complex refractive surgery analysis.