scholarly journals Three-dimensional optical coherence tomography of the optic nerve head with myelinated nerve fibers

2011 ◽  
Vol 4 (4) ◽  
pp. 145-148 ◽  
Author(s):  
Sandeep Saxena ◽  
Astha Jain
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Three Dimensional ◽  
Nerve Fibers ◽  
Optical Coherence ◽  
Myelinated Nerve ◽  
Myelinated Nerve Fibers

scholarly journals Optical Coherence Tomography in Patients with Chiari I Malformation

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Michele Figus ◽  
Chiara Posarelli ◽  
Francesco Nasini ◽  
Paolo Perrini ◽  
Mario Miccoli ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Chiari I Malformation ◽  
Nerve Fibers ◽  
Healthy Controls ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Rnfl Thickness ◽  
Chiari I

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 retinal nerve fiber layer (RNFL) thickness was calculated for both eyes; the mean thickness value was also registered for each quadrant and for each subfield of the four quadrants.Results. CMI patients showed a reduction of the RNFL thickness in both eyes. This reduction was more statistically significant (P<0.05) for the inferior quadrant in the right eye and in each quadrant than nasal one in the left eye.Conclusion. A distress of the retinal nerve fibers could explain the observed reduction of the RNFL thickness in patients with CMI; in our series the reduction of the RNFL thickness seems lower when CMI is associated with syringomyelia.

scholarly journals Ultrahigh-Speed Optical Coherence Tomography for Three-Dimensional and En Face Imaging of the Retina and Optic Nerve Head

2008 ◽  
Vol 49 (11) ◽  
pp. 5103 ◽  
Author(s):  
Vivek J. Srinivasan ◽  
Desmond C. Adler ◽  
Yueli Chen ◽  
Iwona Gorczynska ◽  
Robert Huber ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Three Dimensional ◽  
Optical Coherence ◽  
En Face ◽  
En Face Imaging

scholarly journals Polarization-sensitive optical coherence tomography as a tool to visualize the fiber direction of retinal nerves and peripapillary sclera

2020 ◽  
Vol 238 ◽  
pp. 04003
Author(s):  
Joy Willemse ◽  
Frank Verbraak ◽  
Johannes de Boer
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Healthy Volunteers ◽  
Optic Nerve Head ◽  
Nerve Fibers ◽  
Optic Axis ◽  
Fiber Direction ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Axis Orientation

Polarization sensitive optical coherence tomography (PS-OCT) has been used to visualize the orientation of the nerves in the retinal nerve fiber layer (RNFL) and to visualize the orientation of the collagen fibers in peripapillary sclera in retinas of healthy volunteers. Optic axis orientation images clearly visualize the nerve fibers leaving the optic nerve head (ONH) in all radial directions. Sclera orientation images show that the sclera consist of two layers, an inner layer with an orientation parallel to the RNFL orientation, and a deeper layer where the collagen is circularly oriented.

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