Localised wedge shaped defects of the retinal nerve fibre layer in glaucoma.
نویسندگان
چکیده
منابع مشابه
Localised retinal nerve fibre layer defects in chronic experimental high pressure glaucoma in rhesus monkeys.
AIM To evaluate prospectively in an experimental model of chronic high pressure glaucoma whether the concept of a mainly diffuse pattern of optic nerve damage holds true for high pressure glaucoma. METHODS The study comprised nine eyes of nine rhesus monkeys (Macaca mulatta) with a mean age of 17.7 (SD 3.1) years (range 13-23 years). Experimental glaucoma was produced by multiple applications...
متن کاملComparison of localised nerve fibre layer defects in normal tension glaucoma and primary open angle glaucoma.
AIM To compare the pattern of localised nerve fibre layer (NFL) defects in normal tension glaucoma (NTG) and primary open angle glaucoma (POAG). METHODS 50 NTG eyes and 36 POAG eyes, all with localised NFL defects, were enrolled. On retinal NFL photography, the proximity of the defect to the centre of the fovea (angle alpha) and the sum of the angular width of the defects (angle beta) were de...
متن کاملLaser scanning tomography of localised nerve fibre layer defects.
AIMS Retinal nerve fibre layer photography is a well established method to qualitatively document early structural changes which might be induced by primary open angle glaucoma. The aim was to analyse localised retinal nerve fibre layer (RNFL) defects in a new quantitative way with respect to surface topography, defect width, and surface reflectivity by means of the technique of confocal scanni...
متن کاملDetecting Wedge Shaped Defects in Polarimetric Images of the Retinal Nerve Fiber Layer
Wedge shaped defects of the retinal nerve fiber layer (RNFL) may occur in glaucoma. Currently, automatic detection of wedge shaped defects in Scanning Laser Polarimetry images of the retinal nerve fiber layer is unavailable; an automatic classification is currently based only on global parameters, thereby ignoring important local information. Our method works by a modified dynamic programming t...
متن کاملComparison of algorithms for detection of localised nerve fibre layer defects using scanning laser polarimetry.
AIMS To evaluate different algorithms used to analyse retinal nerve fibre layer thickness (RNFL) data obtained by scanning laser polarimetry, in order to compare their relative abilities to discriminate between patients with glaucomatous localised nerve fibre layer defects and normal subjects. METHODS 48 eyes of 48 glaucomatous patients with localised RNFL defects and 53 eyes of 53 healthy su...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1994
ISSN: 0007-1161
DOI: 10.1136/bjo.78.4.285