Related Experiment Video

Updated: May 4, 2026

Psychophysically-anchored, Robust Thresholding in Studying Pain-related Lateralization of Oscillatory Prestimulus Activity

Psychophysically-anchored, Robust Thresholding in Studying Pain-related Lateralization of Oscillatory Prestimulus Activity

Published on: January 21, 2017

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

Abstract

Purpose:

To compare the performance of the 24-2C Swedish Interactive Thresholding Algorithm (SITA) Faster and Standard with the 10-2 SITA Standard in assessing visual function in patients with glaucoma.

Design:

A multicenter prospective cross-sectional study.

Participants:

Overall, 71 eyes of 71 patients with primary open-angle or normal-tension glaucoma were included.

Methods:

The participants underwent visual field testing using the 24-2C SITA Faster, 24-2C SITA Standard (research prototype), and 10-2 SITA Standard in a randomized order on the same day. The global indices, threshold values, total deviation (TD), pattern deviation (PD), and test durations of the algorithms were compared. Correlations among the 10-2 SITA Standard mean deviation (MD) and number of depressed test point locations in the TD and PD probability plots at P < 5%, P < 2%, and P < 1% significance levels within the central 10° were analyzed.

Main Outcome Measures:

Differences in global indices, threshold values, TD, PD, and test duration between algorithms. Correlations of the MD and number of TD and PD points of the 10-2 SITA Standard and those of the central 10° region for the 24-2C algorithms.

Results:

No significant differences were found in the global indices between the 24-2C SITA Faster and Standard. The 24-2C SITA Faster had a significantly shorter test duration (55.2% shorter) than the 24-2C SITA Standard. The 24-2C SITA Standard was 45.2% shorter than the combined 24-2 SITA Standard plus 10-2 SITA Standard. The 24-2C SITA Standard showed significantly higher correlation with the 10-2 SITA Standard than the 24-2C SITA Faster.

Conclusions:

There were no significant differences in global indices between the 24-2C SITA Standard and 24-2C SITA Faster. However, the 24-2C SITA Standard showed a stronger correlation with the 10-2 SITA Standard. The 24-2C SITA Standard demonstrates potential for more effectively assessing central visual field function in patients with glaucoma.

Financial Disclosure(S):

Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

Keywords:

24-2C Swedish interactive thresholding Algorithm Standard Glaucoma Visual field tests

More Related Videos

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Published on: January 27, 2018

Author Spotlight: Unveiling the Molecular Basis of Pain Perception and Neuropathic Pain

Author Spotlight: Unveiling the Molecular Basis of Pain Perception and Neuropathic Pain

Published on: August 9, 2024

Related Concept Videos

Wald-Wolfowitz Runs Test I

Wald-Wolfowitz Runs Test I

The Wald-Wolfowitz test, also known as the runs test, is a nonparametric statistical test used to assess the randomness of a sequence of two different types of elements (e.g., positive/negative values, successes/failures). It examines whether the order of the elements in a sequence is random or if there is a pattern or trend present. This nonparametric test applies to any ordered data despite the population and sample data distribution, even if a higher sample size is available.
The test works...

Routh-Hurwitz Criterion II

Routh-Hurwitz Criterion II

In the application of the Routh-Hurwitz criterion, two specific scenarios can arise that complicate stability analysis.
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...

One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation

One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for k_a Estimation

This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...

Critical Numbers and the Closed Interval Method

Critical Numbers and the Closed Interval Method

Understanding the maximum and minimum values of a function is essential for analyzing its overall behavior. These values, often referred to as extrema, provide insight into how a function behaves across its domain. In mathematical terms, extrema can be either local—representing peaks and valleys within a limited region—or absolute, indicating the highest or lowest points over an entire interval.A function’s extrema occur at critical numbers, which are values in the domain...

Midpoint Rule

Midpoint Rule

Approximating areas under curved boundaries is a common problem in applied mathematics, particularly when an exact calculation is difficult or impractical. One effective numerical method for this purpose is the Midpoint Rule, which provides an estimate of the area under a curve by using rectangular approximations over a specified interval.Description of the Midpoint RuleThe Midpoint Rule begins by dividing the given interval into a number of equal subintervals. For each subinterval, the...

Synthetic Disvision of Polynomials

Synthetic Disvision of Polynomials

Synthetic division is an efficient algorithmic approach for dividing a polynomial by a linear binomial of the form x - c, where c is a real number. This method is helpful due to its streamlined process, which avoids the more cumbersome steps involved in the traditional long division of polynomials. It simplifies computation and serves as a practical tool for evaluating polynomials and identifying their factors.To perform synthetic division, one begins by listing the coefficients of the...

Articles linked to this work by shared authors, journal, and citation graph.

RNA Structure and Its Function.

Methods in molecular biology (Clifton, N.J.)·2026

Tablet-based multi-stimulus perimetry for glaucoma screening.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·2026

Amniotic Membrane Transplantation Preserves Vision in Pediatric Recessive Dystrophic Epidermolysis Bullosa: Case Series.

Journal of clinical medicine·2026

Parapapillary choroidal dense pigmentation in young healthy eyes: a cross-sectional study.

International journal of retina and vitreous·2026

Accurate Prediction of Humphrey 10-2 Visual Fields in Glaucoma from a Single Rapid IMOvifa 24plus(1-2).

Ophthalmology science·2026

Multifocal Posterior Pigment Epitheliopathy Complicated by Circumferential Choroidal Detachment Treated With Fluorescein Angiography-Guided Focal Laser Photocoagulation: A Case Report.

Cureus·2026

See all related articles