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A Prospective Study of a New 24-2C Algorithm Using the Swedish Interactive Thresholding Algorithm Standard.

Euido Nishijima1, Takahiko Noro1, Kei Sano1

  • 1Department of Ophthalmology, The Jikei University School of Medicine, Nishi-shimbashi, Tokyo, Japan.

Ophthalmology. Glaucoma
|July 23, 2025
PubMed
Summary
This summary is machine-generated.

The 24-2C SITA Standard algorithm shows no significant difference in global indices compared to 24-2C SITA Faster, but offers better correlation for glaucoma visual field testing.

Keywords:
24-2C Swedish interactive thresholding Algorithm StandardGlaucomaVisual field tests

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Area of Science:

  • Ophthalmology
  • Visual Neuroscience

Background:

  • Glaucoma diagnosis relies on accurate visual field assessment.
  • Swedish Interactive Thresholding Algorithm (SITA) offers different testing strategies.

Purpose of the Study:

  • Compare the performance of 24-2C SITA Faster and 24-2C SITA Standard against the 10-2 SITA Standard for glaucoma visual function assessment.
  • Evaluate global indices, threshold values, and test durations.

Main Methods:

  • Multicenter prospective cross-sectional study involving 71 glaucoma patients.
  • Visual field testing using 24-2C SITA Faster, 24-2C SITA Standard, and 10-2 SITA Standard in randomized order.
  • Analysis of global indices, threshold values, total deviation (TD), pattern deviation (PD), and test durations.

Main Results:

  • No significant differences in global indices between 24-2C SITA Faster and 24-2C SITA Standard.
  • 24-2C SITA Faster demonstrated a 55.2% shorter test duration than 24-2C SITA Standard.
  • 24-2C SITA Standard showed a stronger correlation with 10-2 SITA Standard compared to 24-2C SITA Faster.

Conclusions:

  • 24-2C SITA Standard and 24-2C SITA Faster show comparable global index performance.
  • 24-2C SITA Standard provides superior correlation with the 10-2 SITA Standard for central visual field assessment in glaucoma.
  • The 24-2C SITA Standard algorithm is a promising tool for evaluating central visual function in glaucoma patients.