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Development of a simple computerized torsion test to quantify subjective ocular torsion
Y D Kim1, H K Yang1, J-M Hwang1
1Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
Eye (London, England)
|June 17, 2017
Summary
A new computerized torsion test (CTT) offers a simple, reproducible, and accurate method for assessing subjective ocular torsion. This novel test demonstrates better reliability than the double Maddox-rod test (DMRT) and can be used in clinical practice.
Area of Science:
- Ophthalmology
- Neuroscience
- Medical Technology
Background:
- Subjective ocular torsion assessment traditionally relies on the double Maddox-rod test (DMRT) and Lancaster red-green test (LRGT).
- These established methods require specialized equipment and provide only approximate quantitative results for ocular torsion.
Purpose of the Study:
- To develop and validate a novel computerized torsion test (CTT) for precise, individual assessment of subjective ocular torsion.
- To compare the reliability and accuracy of the CTT against the DMRT and LRGT.
Main Methods:
- A computerized torsion test (CTT) was developed using Microsoft Office PowerPoint.
- 30 patients with cyclovertical strabismus and 30 controls underwent CTT, DMRT, and LRGT.
- Intraclass correlation coefficients and Bland-Altman plots were used for comparative analysis.
Main Results:
- The CTT exhibited no significant test-retest differences in both strabismus and control groups, similar to the DMRT.
- The CTT demonstrated acceptable agreement and superior reliability compared to the DMRT.
- The LRGT showed low sensitivity in detecting ocular torsion compared to both CTT and DMRT.
Conclusions:
- The CTT is a simple, reproducible, and accurate tool for assessing subjective ocular torsion.
- The CTT, developed using PowerPoint, is suitable for application in clinical settings.
- The CTT offers a more reliable alternative to traditional methods for ocular torsion measurement.
