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Comparison of optic disc image assessment methods when examining serial photographs for glaucomatous progression
C J Barry1, R Eikelboom, Y Kanagasingam
1Centre for Ophthalmology and Visual Science, The University of Western Australia, Lions Eye Institute, Nedlands, Perth, Western Australia.
Aim:
To assess serial, simultaneous stereo optic disc images by four methods for glaucomatous progression.
Methods:
Using varying techniques, two ophthalmologists assessed serial optic disc images of 52 eyes from 27 patients with a mean duration between images of 18 months. The neuroretinal rim width was qualitatively assessed by four assessment methods and compared with quantitative rim measurements made using PC based software.
Results:
The highest sensitivity of 83% was achieved using computerised stereo chronoscopy.
Conclusion:
Stereo chronoscopy improved the detection of subtle optic disc changes when compared with simpler assessment techniques.