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Related Experiment Videos

Comparison between Tendency-Oriented Perimetry (TOP) and octopus threshold perimetry.

J Morales1, M L Weitzman, M González de la Rosa

  • 1Department of Ophthalmology and Visual Sciences, Texas Tech University Health Sciences Center, Lubbock 79430, USA. eyejm@ttuhsc.edu

Ophthalmology
|January 27, 2000
PubMed
Summary
This summary is machine-generated.

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Tendency-Oriented Perimetry (TOP) is a faster visual field test, completing in 4 minutes compared to 14.65 minutes for standard methods. This new automated perimetry successfully detects visual field abnormalities, offering a quicker alternative.

Area of Science:

  • Ophthalmology
  • Optometry
  • Visual Science

Background:

  • Automated perimetry is crucial for diagnosing and monitoring visual field defects.
  • Standard perimetry techniques can be time-consuming, potentially impacting patient compliance and throughput.
  • There is a need for faster, yet accurate, visual field testing methods.

Purpose of the Study:

  • To compare the efficacy and efficiency of a novel ultra-short automated perimetry test, Tendency-Oriented Perimetry (TOP).
  • To evaluate TOP's performance against a standard bracketing approach in detecting visual field abnormalities.
  • To assess the time-saving potential and diagnostic accuracy of TOP.

Main Methods:

  • A prospective, multicenter, observational comparative case series involving 57 subjects.

Related Experiment Videos

  • Two standard thresholding tests (Octopus program 32) and two TOP program tests were performed on each subject.
  • Comparison of global indices (MD, sLV), topographical defects, reproducibility, sensitivity/specificity, and test duration.

    • Main Results:

    • High correlation coefficients were observed for global indices between TOP and standard testing (MD: r=0.97, sLV: r=0.93).
    • TOP demonstrated comparable reproducibility to standard perimetry for threshold determination and global indices.
    • TOP was significantly faster, averaging 4.05 minutes compared to 14.65 minutes for the standard test, while maintaining high accuracy in detecting abnormalities.

    Conclusions:

    • Tendency-Oriented Perimetry (TOP) is approximately four times faster than traditional full-threshold perimetry.
    • TOP effectively detects visual field abnormalities, with detected defects tending to be smaller and shallower.
    • TOP presents a viable and efficient alternative to conventional perimetric techniques for visual field assessment.