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Abstract #8390 Published in IGR 5-1
Scanning laser polarimetry and detection of progression after optic disc hemorrhage in patients with glaucoma
Boehm MD; Nedrud C; Greenfield DS; Chen PPArchives of Ophthalmology 2003; 121: 189-194
OBJECTIVE: To examine retinal nerve fiber layer changes with scanning laser polarimetry (SLP) in the eyes of patients with glaucoma and optic disc hemorrhage. METHODS: Automated perimetry and SLP were performed in 17 eyes of 17 patients identified prospectively with optic disc hemorrhage. Criteria for visual field progression were based on decreased sensitivity seen at three adjacent points on the total deviation plot. Progression on SLP images was defined as a 15% or more decrease in the average thickness of the affected quadrant (superior or inferior), a 25% or more reduction in the affected quadrant ratio, an increase in the nerve fiber analyzer number of ten or more (GDx Nerve Fiber Analyzer; Laser Diagnostic Technologies), or any change on Serial Analysis of the SLP images. MAIN OUTCOME MEASURES: Visual field progression and SLP image progression. RESULTS: The mean follow-up was 31 months (minimum, 12 months). Of the 17 eyes, ten (59%) had visual field progression. No significant change was seen on SLP images for either the total group or the group with visual field progression. Five eyes (29%) showed progression on SLP images, three of which also showed visual field progression. Ten eyes showed progression on SLP images that was not confirmed on subsequent imaging. CONCLUSIONS: In eyes with visual field progression after optic disc hemorrhage, a significant change in the SLP image was not seen. Fluctuation of SLP results in patients with glaucoma necessitates confirmation of progression seen on SLP images.
Dr. M.D. Boehm, Department of Ophthalmology, University of Washington, Campus Box 356485, 1959 NE Pacific Street, Seattle, WA 98195-6485, USA
Classification:
2.13 Retina and retinal nerve fibre layer (Part of: 2 Anatomical structures in glaucoma)
6.9.1 Laser scanning (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis)
