نتایج جستجو برای: nerve fiber thickness

تعداد نتایج: 385119  

2016
Michele Figus Chiara Posarelli Francesco Nasini Paolo Perrini Mario Miccoli Angelo Baggiani Antonio Ferreras Marco Nardi

Background/Aims. To evaluate optic nerve head with spectral domain optical coherence tomography (OCT) in patients with Chiari I malformation (CMI) compared to healthy controls. Methods. Cross-sectional study. OCT of the optic nerve head of 22 patients with CMI and 22 healthy controls was quantitatively analyzed. The healthy controls were matched for age and sex with the study population. Mean r...

2017
Elena Avram

Introduction: For many years, amblyopia was regarded as a disorder of the visual system in which an organic cause could not be identified. Optical Coherence Tomography opens new horizons in understanding the etiopathology of amblyopia and seems to highlight morphologic anomalies in the retina of the amblyopic eye. Purpose: The objective of this paper is to analyze the macular thickness, optic n...

Journal: :Investigative ophthalmology 1974
T E Ogden

The intraretinal path taken by fibers of the arcuate bundle was studied in four Rhesus monkeys. The fibers incorporated radioactivity subsequent to the injection of a small amount of Hproline into the retina. The classical arciform projection was described and it was noted that near the disc, where the nerve-fiber layer contained many unlabeled fibers from the region of the area centralis, the ...

Journal: :QJM: An International Journal of Medicine 2021

Abstract PURPOSE To evaluate the macular, retinal nerve fiber layer (RNFL) and choroidal thickness alterations by using spectral-domain optical coherence tomography (SD-OCT) in postmenopausal, pregnant non-pregnant women. PATIENTS AND METHODS A comparative study included a total of 42 eyes (Right eye) healthy females period from march 2019 to September divided into 3 groups: a) Non b) Pregnant ...

2016
Seok Hyun Bae Shin Hee Kang Chi Shian Feng Joohyun Park Jae Hoon Jeong Kayoung Yi

PURPOSE To investigate optic nerve head size and retinal nerve fiber layer (RNFL) thickness according to refractive status and axial length. METHODS In a cross-sectional study, 252 eyes of 252 healthy volunteers underwent ocular biometry measurement as well as optic nerve head and RNFL imaging by spectral-domain optical coherence tomography. Correlation and linear regression analyses were per...

2015
Michele Figus Chiara Posarelli Francesco Nasini Paolo Perrini Mario Miccoli Angelo Baggiani Antonio Ferreras Marco Nardi

BACKGROUND/AIMS To evaluate optic nerve head with spectral domain optical coherence tomography (OCT) in patients with Chiari I malformation (CMI) compared to healthy controls. METHODS Cross-sectional study. OCT of the optic nerve head of 22 patients with CMI and 22 healthy controls was quantitatively analyzed. The healthy controls were matched for age and sex with the study population. Mean r...

Journal: :Seizure 2016
Yasemin Bicer Gomceli Berna Dogan Fatma Genc Elif Uygur Deniz Turgut Coban Abidin Erdal Muhammed Kazım Erol

PURPOSE Juvenile myoclonic epilepsy (JME) is commonly associated with photoparoxysmal response (PPR) with a reported prevalence of 25-42%. In this study, we aim to explore the relationship between the PPR and Optical Coherence Tomography (OCT) parameters in order to determine whether optic nerve fiber layer or other structural differences have a pathophysiological role of photosensitivity in pa...

Journal: :Archives of ophthalmology 2009
Mays A El-Dairi Sanjay G Asrani Laura B Enyedi Sharon F Freedman

OBJECTIVE To collect a normative database of macular thickness, retinal nerve fiber layer (RNFL) thicknesses, and optic nerve topography in the healthy eyes of children aged 3 to 17 years using optical coherence tomography (OCT) measurements. METHODS Scans were obtained for 286 healthy children (black, 114; white, 154; other, 18). Each child had a dilated eye examination, an axial length meas...

2015
Michael J Selbach

Background: To investigate the retinal vessel diameter and its possible relationship with the retinal nerve fiber layer (RNFL) thickness in normal tension glaucoma (NTG). Methods: 86 NTG patients with detailed eye examination including retinal vessel analysis (DVA) and measurement of the RNFL thickness with scanning laser polarimetry (SLP; GDxVCC) were included in this retrospective study. The ...

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