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Abstract #15428 Published in IGR 1-3
Optic nerve blood flow in glaucoma: Effect of systemic hypertension (multiple letters)
Wilson WB; Grunwald J; Piltz JAmerican Journal of Ophthalmology 1999; 128: 663-664
The corresponding author comments on the use of the term bloodflow when Doppler flowmetry is used for measurement. His perception is that this method has a difficult time very accurately measuring bloodflow. The original authors agreed that there is no accepted technique that can be considered a Gold-standard for optic nerve head bloodflow determinations. They feel that laser Doppler flowmetry is the only non-invasive technique available that can provide continuous non-invasive bloodflow determinations of the human optic nerve head. They than discuss the depth of the optic nerve tissue that is measured in flowmetry. They reply that the assessment of bloodflow depends on the optical and scattering properties of the optic nerve head and that comparisond between normal and glaucoma patients must be done with great care. Without directly answering the question of the original author they state that their measurement provides useful information. They agree that laser Doppler-flowmetry has some inherit limitations just as all other available bloodflow measurement techniques do.
Classification:
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
