نتایج جستجو برای: scanning laser polarimetry

تعداد نتایج: 329938  

Journal: :Chang Gung medical journal 2005
Ming-Tse Kuo Ing-Chou Lai Mei-Ching Teng

A 40-year-old male patient suffered from traumatic optic neuropathy in his right eye. Scanning laser polarimetry was arranged at 2 weeks, 9 weeks, 13 weeks, 24 weeks, and 34 weeks after the trauma. Manual or automated visual field testing was also arranged at 1 week, 5 weeks, 16 weeks, and 28 weeks correspondingly. The data revealed using scanning laser polarimetry (program GDx, version 1.0.05;...

1999
Vinay K. Gupta Julia A. Kornfield

To image the orientational order in a broad class of biological and manufactured materials, a new microscope has been developed that integrates laser scanning microscopy with polarization modulation polarimetry. Polarimetry allows quantitative characterization of the molecular orientation and the degree of order through characterization of optical anisotropy. Combined with laser scanning micros...

2012
Jaromir T. Wasyluk Irmina Jankowska-Lech Barbara Terelak-Borys Iwona Grabska-Liberek

BACKGROUND We compared the parameters of retinal nerve fibre layer in patients with advanced glaucoma with the use of different OCT (Optical Coherence Tomograph) devices in relation to analogical measurements performed with GDx VCC (Nerve Fiber Analyzer with Variable Corneal Compensation) scanning laser polarimetry. MATERIAL/METHODS Study subjects had advanced primary open-angle glaucoma, pre...

Journal: :The British journal of ophthalmology 1997
G Holló I Süveges A Nagymihály P Vargha

AIMS To evaluate the clinical value of scanning laser polarimetry with the nerve fibre analyser type II in primary open angle glaucoma (POAG) and capsular glaucoma. METHODS Scanning laser polarimetry was performed on one eye of 30 patients suffering from POAG, 25 patients suffering from capsular glaucoma, and on 35 healthy control subjects. The retinal nerve fibre layer (RNFL) thickness value...

Journal: :Transactions of the American Ophthalmological Society 2002
Robert N Weinreb Christopher Bowd Linda M Zangwill

PURPOSE To describe and test a method for assessment of the monkey retinal nerve fiber layer (RNFL) with scanning laser polarimetry. METHODS A scanning laser polarimeter was modified to accommodate a variable corneal polarization compensator. Corneal polarization magnitude (CPM) and corneal polarization axis (CPA) of the anterior segment birefringence of normal and glaucomatous cynomolgus mon...

Journal: :Investigative ophthalmology & visual science 2010
Guoping Qing Shaodan Zhang Bo Wang Ningli Wang

PURPOSE To investigate, by functional magnetic resonance imaging (fMRI), the impact of glaucomatous neuropathy of primary open-angle glaucoma (POAG) on neuronal activity in the primary visual cortex, which corresponds to the central normal visual field. METHODS Six POAG patients with asymmetric visual field damage and spared central vision were enrolled in the study. All patients underwent de...

Journal: :Archives of ophthalmology 1998
R N Weinreb L Zangwill C C Berry R Bathija P A Sample

OBJECTIVE To determine which retinal nerve fiber layer (RNFL) measures obtained with scanning laser polarimetry are most useful in detecting early to moderate glaucomatous visual field loss. SUBJECTS AND METHODS One eye from 84 healthy individuals and 83 patients with early to moderate glaucomatous visual field loss (167 eyes) was assessed with a scanning laser polarimeter (Laser Diagnostic T...

Journal: :Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde 2003
Andrea B Jehn René M Muri Daniel S Mojon

OBJECTIVE To study the influence of cycloversions induced by head tilt on parameters of scanning laser polarimetry. METHODS Five left and five right eyes of 9 normal subjects were measured in seven different head tilt positions by one examiner using a scanning laser polarimeter (Nerve Fiber Analyzer, NFA II, LDT Inc., San Diego, Calif., USA). Images were acquired for the following head tilt p...

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