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Related Experiment Videos

Baseline alterations in blue-on-yellow normal perimetric sensitivity

J M Wild1, I D Moss

  • 1Department of Vision Sciences, Aston University, Birmingham, UK.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie
|March 1, 1996
PubMed
Summary

Learning effects significantly improve blue-on-yellow (B-Y) perimetry performance with increased familiarity, irrespective of prior white-on-white (W-W) experience or age. Accounting for these learning gains is crucial for accurate B-Y perimetry results.

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Area of Science:

  • Ophthalmology
  • Visual Science

Background:

  • The impact of learning and fatigue on blue-on-yellow (B-Y) perimetry is not well understood.
  • Investigating within- and between-eye changes in normal B-Y sensitivity is essential, considering factors like prior white-on-white (W-W) perimetry experience and subject age.

Purpose of the Study:

  • To determine the extent of learning and fatigue effects in blue-on-yellow (B-Y) perimetry.
  • To analyze how perimetric experience and age influence B-Y sensitivity changes within and between eyes over time.

Main Methods:

  • Sixty-one normal subjects (22 young, 39 elderly) were divided into four groups based on age and perimetric experience.
  • Subjects underwent B-Y perimetry using Program 30-2 on a modified Humphrey Field Analyser on four separate occasions (three consecutive days and one week later).

Related Experiment Videos

  • Global, hemifield, and annular mean sensitivities, along with global short-term fluctuation, were calculated for each eye at each visit.

    • Main Results:

    • Mean sensitivity increased over the first three days, independent of age or prior experience, and was higher in the first eye tested.
    • Short-term fluctuation decreased over the three days for both eyes and across all experience levels, though it was more pronounced in younger subjects.
    • Significant improvements in performance were observed as subjects gained familiarity with the B-Y test.

    Conclusions:

    • Familiarity with the blue-on-yellow (B-Y) perimetry test leads to performance improvements, irrespective of previous white-on-white (W-W) experience.
    • Failure to account for these learning effects can negatively impact the efficiency and accuracy of B-Y perimetry assessments.