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Assessment of stereoscopic optic disc images using an autostereoscopic screen - Experimental study

Lookup NU author(s): Professor Nick Holliman, Dr Daniela Vaideanu-Collins, Anthony Hildreth, David Steel

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Abstract

Background. Stereoscopic assessment of the optic disc morphology is an important part of the care of patients with glaucoma. The aim of this study was to assess stereoviewing of stereoscopic optic disc images using an example of the new technology of autostereoscopic screens compared to the liquid shutter goggles. Methods. Independent assessment of glaucomatous disc characteristics and measurement of optic disc and cup parameters whilst using either an autostereoscopic screen or liquid crystal shutter goggles synchronized with a view switching display. The main outcome measures were inter-modality agreements between the two used modalities as evaluated by the weighted kappa test and Bland Altman plots. Results. Inter-modality agreement for measuring optic disc parameters was good [Average kappa coefficient for vertical Cup/Disc ratio was 0.78 (95% CI 0.62-0.91) and 0.81 (95% CI 0.6-0.92) for observer 1 and 2 respectively]. Agreement between modalities for assessing optic disc characteristics for glaucoma on a five-point scale was very good with a kappa value of 0.97. Conclusion. This study compared two different methods of stereo viewing. The results of assessment of the different optic disc and cup parameters were comparable using an example of the newly developing autostereoscopic display technologies as compared to the shutter goggles system used. The Inter-modality agreement was high. This new technology carries potential clinical usability benefits in different areas of ophthalmic practice. © 2008 Habib et al; licensee BioMed Central Ltd.


Publication metadata

Author(s): Habib M, Lowell J, Holliman N, Hunter A, Vaideanu D, Hildreth A, Steel D

Publication type: Article

Publication status: Published

Journal: BMC Ophthalmology

Year: 2008

Volume: 8

Issue: 13

ISSN (electronic): 1471-2415

Publisher: BioMed Central

URL: http://dx.doi.org/10.1186/1471-2415-8-13

DOI: 10.1186/1471-2415-8-13

PubMed id: 18651983


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