Effect of Cataract and its Removal on Signal Strength and Peripapillary Retinal Nerve Fiber Layer Optical Coherence Tomography Measurements

2011 ◽  
Vol 20 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Jean C. Mwanza ◽  
Anjali M. Bhorade ◽  
Navneet Sekhon ◽  
John J. McSoley ◽  
Sonia H. Yoo ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Signal Strength ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Nerve Fiber Layer ◽  
Retinal Nerve Fiber

Relationship between Retinal Nerve Fiber Layer Measurement and Signal Strength in Optical Coherence Tomography

Ophthalmology ◽  
2008 ◽  
Vol 115 (8) ◽  
pp. 1347-1351.e2 ◽  
Author(s):  
Carol Yim Lui Cheung ◽  
Christopher Kai Shun Leung ◽  
Dusheung Lin ◽  
Chi-Pui Pang ◽  
Dennis Shun Chiu Lam
Keyword(s):  
Optical Coherence Tomography ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Signal Strength ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Nerve Fiber Layer ◽  
Retinal Nerve Fiber

Retinal Optical Coherence Tomography Metrics Are Unchanged in Verubecestat Alzheimer’s Disease Clinical Trial but Correlate with Baseline Regional Brain Atrophy

2021 ◽  
Vol 79 (1) ◽  
pp. 275-287
Author(s):  
Robert C. Sergott ◽  
Annaswamy Raji ◽  
James Kost ◽  
Cyrille Sur ◽  
Saheeda Jackson ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Optical Coherence Tomography ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Brain Atrophy ◽  
Retinal Thickness ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Nerve Fiber Layer ◽  
Retinal Nerve Fiber

Background: We performed exploratory analyses of retinal thickness data from a clinical trial of the AβPP cleaving enzyme (BACE) inhibitor verubecestat in patients with Alzheimer’s disease (AD). Objective: To evaluate: 1) possible retinal thickness changes following BACE inhibition; and 2) possible association between retinal thickness and brain atrophy. Methods: Retinal thickness was measured using spectral-domain optical coherence tomography in a 78-week randomized placebo-controlled trial of verubecestat in 1,785 patients with mild-to-moderate AD. Changes from baseline in retinal pigment epithelium, macular grid retinal nerve fiber layer, central subfield retinal thickness, and macular grid volume were evaluated for verubecestat versus placebo. Correlation analyses were performed to investigate the potential association between macular grid retinal nerve fiber layer and central subfield retinal thickness with brain volumetric magnetic resonance imaging (vMRI) data at baseline, as well as correlations for changes from baseline at Week 78 in patients receiving placebo. Results: Verubecestat did not significantly alter retinal thickness during the trial compared with placebo. At baseline, mean macular grid retinal nerve fiber layer and central subfield retinal thickness were weakly but significantly correlated (Pearson’s r values≤0.23, p-values < 0.01) with vMRI of several brain regions including whole brain, hippocampus, and thalamus. At Week 78, correlations between retinal thickness and brain vMRI changes from baseline in the placebo group were small and mostly not statistically significant. Conclusion: BACE inhibition by verubecestat was not associated with adverse effects on retinal thickness in patients with mild-to-moderate AD. Correlations between retinal thickness and brain volume were observed at baseline. Trial registration: Clinicaltrials.gov NCT01739348 (registered December 3, 2012; https://clinicaltrials.gov/ct2/show/NCT01739348).

scholarly journals Birefringence measurement of the retinal nerve fiber layer by swept source polarization sensitive optical coherence tomography

2011 ◽  
Vol 19 (11) ◽  
pp. 10252 ◽  
Author(s):  
Badr Elmaanaoui ◽  
Bingqing Wang ◽  
Jordan C. Dwelle ◽  
Austin B. McElroy ◽  
Shuang S. Liu ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Swept Source ◽  
Nerve Fiber Layer ◽  
Retinal Nerve Fiber

scholarly journals Retinal Nerve Fiber Layer Measurement Variability with Spectral Domain Optical Coherence Tomography

2012 ◽  
Vol 26 (1) ◽  
pp. 32 ◽  
Author(s):  
Jung Taeck Hong ◽  
Kyung Rim Sung ◽  
Jung Woo Cho ◽  
Sung-Cheol Yun ◽  
Sung Yong Kang ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Measurement Variability ◽  
Nerve Fiber Layer ◽  
Retinal Nerve Fiber

Analysis of Localized Retinal Nerve Fiber Layer Defects not Detected by Optical Coherence Tomography

2009 ◽  
Vol 50 (4) ◽  
pp. 558
Author(s):  
Young Sang Han ◽  
Seung Youn Jea ◽  
Su Jin Kim ◽  
Joo Eun Lee ◽  
Ji Eun Lee ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Nerve Fiber Layer ◽  
Retinal Nerve Fiber
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