Comparing Autostereoscopic and Shutter Goggles for Optic Disc Assessment
Author Information
Author(s): Habib Maged S, Lowell James A, Holliman Nick S, Hunter Andrew, Vaideanu Daniella, Hildreth Anthony, Steel David HW
Primary Institution: Sunderland Eye Infirmary, UK
Hypothesis
Does the stereoviewing performance of an autostereoscopic screen provide equivalent clinical and diagnostic accuracy compared to liquid crystal shutter goggles?
Conclusion
The study found that the autostereoscopic display technology provides comparable diagnostic and clinical assessment to the liquid crystal shutter goggles.
Supporting Evidence
- The average kappa coefficient for vertical Cup/Disc ratio was 0.78 for observer 1 and 0.81 for observer 2.
- Inter-modality agreement for assessing optic disc characteristics was very good with a kappa value of 0.97.
- The study included 60 optic disc stereo-images from patients with glaucoma, suspect glaucoma, and normals.
Takeaway
This study looked at two ways to see images of the eye's optic disc. It found that a new type of screen works just as well as the old goggles for checking eye health.
Methodology
The study involved independent assessments of optic disc characteristics using either an autostereoscopic screen or liquid crystal shutter goggles, with inter-modality agreements evaluated by weighted kappa tests.
Potential Biases
Potential bias due to the inability to mask observers to the viewing modality.
Limitations
Observers could not be masked to the stereo viewing modality, which may introduce bias.
Participant Demographics
Participants included 36 males and 24 females, aged 45 to 72 years, with various glaucoma diagnoses.
Statistical Information
P-Value
<0.0001
Confidence Interval
95% CI 0.62–0.91
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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