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Computerized contact lens fitting.

W A Douthwaite1

  • 1Department of Optometry, University of Bradford, West Yorkshire, United Kingdom.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|October 1, 1991
PubMed
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This study compared computerized and conventional contact lens fitting methods. The computerized approach using standard keratometry was faster and showed good agreement with clinical assessment for determining optimal contact lens parameters.

Area of Science:

  • Ophthalmology
  • Optometry
  • Biomedical Engineering

Background:

  • Accurate contact lens fitting is crucial for visual acuity and ocular health.
  • Computerized methods offer potential for increased efficiency in contact lens fitting.

Purpose of the Study:

  • To compare a novel computerized contact lens fitting method with conventional clinical assessment.
  • To evaluate the speed and accuracy of the computerized approach.

Main Methods:

  • Utilized a keratometer with standard and large mire to measure corneal apical radius and p value.
  • Employed a computer program for optimum contact lens determination based on keratometry data.
  • Independent assessment using a conventional contact lens fitting set.

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Main Results:

  • Broad agreement was found between the computerized and conventional fitting methods.
  • The computerized approach demonstrated significantly faster fitting times.
  • Standard keratometry provided a reliable estimate of equivalent sphere for computerized back optic zone radius calculation.

Conclusions:

  • Computerized contact lens fitting is a viable and efficient alternative to conventional methods.
  • Standard keratometry is adequate for input into computerized fitting algorithms.
  • This technology can streamline the contact lens fitting process for eye care professionals.