ChromaTest for Diabetic Maculopathy
Author Information
Author(s): Wong Roger, Khan Jaheed, Adewoyin Temi, Sivaprasad Sobha, Arden Geoffrey B, Chong Victor
Primary Institution: King's College Hospital NHS Trust
Hypothesis
To assess the ability of the Chromatest in investigating diabetic maculopathy.
Conclusion
The ChromaTest is a simple, cheap, easy to use, and quick test for colour contrast sensitivity, but it did not achieve results to justify its use for screening.
Supporting Evidence
- 150 eyes in 150 patients were recruited into this study.
- Statistical significant difference was found between CSMO and NPDR eyes for protan and tritan colour contrast thresholds.
- Sensitivity and specificity for screening of CSMO achieved 71% and 70%, respectively.
Takeaway
The ChromaTest is a quick and easy way to check how well people with diabetes can see colors, but it might not be good enough to use for regular check-ups.
Methodology
Patients with Type 2 diabetes and no concurrent ocular pathology were tested for visual acuity and color contrast sensitivity using the Chromatest.
Potential Biases
The normal threshold levels were obtained from the same dataset, which may not accurately represent true normal values.
Limitations
The study used the same dataset for both training and testing, which may introduce bias.
Participant Demographics
Median age was 60 years, and median duration of diabetes was 16.0 years.
Statistical Information
P-Value
0.0002
Confidence Interval
95% confidence interval: 53–85%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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