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Behavioral control of visual field screening using a microcomputer.

C N French1, I C Wood

  • 1Department of Optometry and Vision Sciences, University of Manchester Institute of Science and Technology, Manchester, United Kingdom.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|December 1, 1989
PubMed
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A new computer algorithm automates visual field testing and response analysis. This reliable and valid method, tested on normal subjects, offers potential for microcomputer-based visual field investigations.

Area of Science:

  • Ophthalmology
  • Computer Science
  • Medical Technology

Background:

  • Traditional visual field testing can be time-consuming and subjective.
  • There is a need for automated and reliable methods for visual field assessment.

Purpose of the Study:

  • To describe a computer algorithm for automated visual field testing.
  • To evaluate the reliability and validity of this automated procedure.
  • To explore the use of microcomputers in visual field investigations.

Main Methods:

  • Development of a computer algorithm for controlling visual field target presentation.
  • Automated analysis of subject responses using the algorithm.
  • Testing the procedure with normal subjects on an IBM PC compatible system.

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Main Results:

  • The computer algorithm successfully controlled target presentation and analyzed responses.
  • Data indicated good reliability and validity for the automated procedure.
  • Initial experience with normal subjects was positive.

Conclusions:

  • The described computer algorithm provides a reliable and valid method for automated visual field testing.
  • Microcomputer-based approaches show promise for future visual field investigations.
  • Further development is suggested to enhance microcomputer applications in this field.