Four Cases of Difficulty for Analyzing Retinal Nerve Fiber Layer Defects by Optical Coherence Tomography Cirrus HD-OCT in Glaucoma
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چکیده
منابع مشابه
Retinal Nerve Fiber Layer Imaging with Spectral-domain Optical Coherence Tomography (OCT)—A Review of the Cirrus HD-OCT
High-speed, high-resolution imaging of the retinal nerve fiber layer (RNFL) with spectral-domain optical coherence tomography (OCT) has become an essential tool for evaluation of glaucoma. The Cirrus HD-OCT (Carl Zeiss Meditec, Inc. Dublin, CA) is a spectral-domain OCT that provides visualization of the distribution pattern and measurement of RNFL abnormalities in a 6x6mm2 optic disc region. An...
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INTRODUCTION To evaluate the relationship between retinal nerve fiber layer (RNFL) thickness measured by Cirrus high-definition (HD) optical coherence tomography (OCT) and the axial length and refractive error of the eye. MATERIALS AND METHODS A total of 100 eyes of 100 healthy subjects (age 20-34 years with M/F ratio of 57/43), comprising 50 eyes with emmetropia [spherical equivalent (SE) 0 ...
متن کاملAccuracy of the retinal nerve fiber layer measurements by Stratus optical coherence tomography for perimetric glaucoma.
OBJECTIVE To calculate the sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of measurements of the retinal nerve fiber layer using the Stratus optical coherence tomography in glaucoma subjects with visual field defects on achromatic perimetry as the gold standard. STUDY DESIGN Comparative cross-sectional. PLACE AND DURATION OF STUDY Outd...
متن کاملSegmentation of Retinal Nerve Fiber Layer in Optical Coherence Tomography (OCT) Images using Statistical Region Merging Technique for Glaucoma Screening
The Retinal Nerve Fiber Layer thickness is one of the main clinical parameter used to diagnose glaucoma eye disease. The thickness of the RNFL decreases as the intraocular pressure inside the eye increases. Decrease in RNFL thickness or damages to RNFL due to high intraocular pressure leads to Glaucoma. The present work provides a technique for the segmentation of Retinal Nerve Fiber Layer (RNF...
متن کاملReproducibility of peripapillary retinal nerve fiber layer thickness measurements with cirrus HD-OCT in glaucomatous eyes.
AIM To assess the reproducibility of Cirrus high-definition optical coherence tomography (HD-OCT; Carl Zeiss Meditec, Dublin, CA, USA) for analysis of peripapillary retinal nerve fiber layer (RNFL) thickness in glaucomatous eyes. METHODS Forty-five eyes (one eye from each glaucomatous patient) were imaged with Cirrus HD-OCT. Each eye was imaged three times by two separate operators. Intraclas...
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ژورنال
عنوان ژورنال: JAPANESE ORTHOPTIC JOURNAL
سال: 2012
ISSN: 0387-5172,1883-9215
DOI: 10.4263/jorthoptic.041f131