Anatomical Characterization of an Optic Disc Notch Using SD-OCT in Glaucoma

2018 ◽  
Vol 33 (7-8) ◽  
pp. 878-885
Author(s):  
Aparna Rao ◽  
Hrishikesh Kaza ◽  
Debananda Padhy ◽  
Gopinath Das ◽  
Sarada Sarangi
Keyword(s):  
Optic Disc ◽  
Sd Oct ◽  
Anatomical Characterization

scholarly journals Spectral-Domain Optical Coherence Tomography-Based Morphofunctional Characterization of Dome-Shaped Maculopathy in Indian Population

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Naresh Babu Kannan ◽  
Sagnik Sen ◽  
Prithviraj Udaya ◽  
Obuli Ramachandran ◽  
Kim Ramasamy
Keyword(s):  
Optical Coherence Tomography ◽  
Indian Population ◽  
Subretinal Fluid ◽  
Cross Sectional Study ◽  
Spectral Domain ◽  
Dome Height ◽  
Optical Coherence ◽  
Cross Sectional ◽  
Sd Oct

Purpose. To study the clinicodemographic profile of dome-shaped maculopathy (DSM) eyes in the Indian population and characterization using spectral-domain optical coherence tomography (SD-OCT). Methods. This observational cross-sectional study included 25 eyes of 14 patients diagnosed with DSM. All eyes underwent SD-OCT for characterization of the dome profile and also to measure central macular thickness (CMT), subfoveal choroidal thickness (SFCT), and dome height (DH) and to detect the presence of subretinal fluid (SRF). Results. The mean age of patients was 48.36 ± 14.23 years (range, 28–65 years). Eleven patients had bilateral involvement. Mean axial length of all eyes was 24.25 ± 1.95 mm and mean spherical equivalent −4.23 ± 3.79 DS. Overall, 11/25 eyes (44%) had round domes, 9/25 eyes (36%) had horizontal domes, and 5/25 eyes (20%) had vertical domes, with a mean dome height at fovea of 500.54 ± 291.58 µm. Vertical domes had higher DH compared to horizontal or combined domes p = 0.02 . Six eyes (6/25, 24%) showed the presence of SRF; 60% of vertical domes had SRF, and 22.2% of horizontal domes had SRF. The eyes having SRF had significantly higher CMT p = 0.017 and DH p = 0.001 , especially in horizontal domes p = 0.023 . The eyes with thicker SFCT tended to have higher DH and poorer visual acuity. Conclusion. Indian DSM eyes may have relatively lesser amounts of myopia. Choroidal thickening may play a role in development of DSM and may also be related to development of subretinal fluid in such eyes.

scholarly journals Repeatability of Bruch’s Membrane Opening-minimum Rim Width in Age-related Macular Degeneration and Diabetic Macular Edema

2021 ◽  
Vol 62 (11) ◽  
pp. 1490-1501
Author(s):  
Bum Jun Kim ◽  
Woo Hyuk Lee ◽  
Ki Yup Nam ◽  
Ji Hye Kim ◽  
Tae Seen Kang ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Macular Edema ◽  
Optic Disc ◽  
Diabetic Macular Edema ◽  
Age Related Macular Degeneration ◽  
Disc Membrane ◽  
Rnfl Thickness ◽  
Age Related ◽  
Bruch’S Membrane Opening ◽  
Sd Oct

Purpose: To evaluate the repeatability of retinal nerve fiber layer (RNFL) thickness and Bruch’s membrane opening-minimum rim width (BMO-MRW) measurements by spectral-domain optical coherence tomography (SD-OCT) in wet age-related macular degeneration (wAMD) and diabetic macular edema (DME).Methods: This was a prospective study. The RNFL thickness and BMO-MRW parameters for each sector and global average were measured twice by SD-OCT. Repeatability was evaluated using the intraclass correlation coefficient (ICC) and coefficient of variation (CV). If the optic disc membrane was confirmed, it was analyzed by dividing it into three groups based on severity.Results: A total of 99 eyes (48 with wAMD, 51 with DME) were included in the analysis. The ICCs of the global RNFL thickness and global BMO-MRW measurements were 0.996 and 0.997, respectively, in wAMD and 0.994 and 0.996, respectively, in DME eyes. The CV values of global RNFL thickness and BMO-MRW were 0.60% and 0.73%, respectively, in wAMD eyes and 1.10% and 1.21%, respectively, in DME eyes. The disc membrane on the optic nerve head significantly affected global BMO-MRW repeatability (B = 0.814, p < 0.001).Conclusions: Both RNFL thickness and BMO-MRW measurements showed good repeatability in eyes with wAMD and DME. The severity of the optic disc membrane significantly affected the repeatability of BMO-MRW measurements in eyes with wAMD and DME. Therefore, physicians should examine the BMO-MRW in eyes with severe optic disc membrane.

scholarly journals Anatomical Characterization of Phrenic Afferent Projections Following Cervical Spinal Cord Injury

2015 ◽  
Vol 29 (S1) ◽  
Author(s):  
Jayakrishnan Nair ◽  
Elisa Gonzalez‐Rothi ◽  
Gregory Armstrong ◽  
Paul Reier ◽  
David Fuller
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Cervical Spinal Cord ◽  
Cervical Spinal Cord Injury ◽  
Afferent Projections ◽  
Cord Injury ◽  
Anatomical Characterization

scholarly journals Anatomical characterization of Cre driver mice for neural circuit mapping and manipulation

2014 ◽  
Vol 8 ◽  
Author(s):  
Julie A. Harris ◽  
Karla E. Hirokawa ◽  
Staci A. Sorensen ◽  
Hong Gu ◽  
Maya Mills ◽  
...  
Keyword(s):  
Neural Circuit ◽  
Anatomical Characterization

Comparative Assessment of Widefield Fundus Autofluorescence Patterns in Retinoschisis and Retinal Detachment

2020 ◽  
Vol 4 (4) ◽  
pp. 286-292
Author(s):  
Jessica L. Cao ◽  
Thais F. Conti ◽  
Grant L. Hom ◽  
Amy S. Babiuch ◽  
Tyler Greenlee ◽  
...  
Keyword(s):  
Retinal Detachment ◽  
Imaging Modality ◽  
Fundus Autofluorescence ◽  
Case Series ◽  
Comparative Assessment ◽  
High Variability ◽  
Retrospective Case ◽  
Data Points ◽  
Sd Oct

Purpose: This article characterizes widefield fundus autofluorescence (WF-FAF) patterns in retinoschisis (RS), retinal detachment (RD), and combined retinoschisis-detachment (RS/RD), and to correlate them with spectral-domain optical coherence tomography (SD-OCT) findings. Methods: A retrospective case series of 13 eyes with senile RS, RD, or RS/RD is presented. One eye underwent imaging of 2 areas within the retina, resulting in 14 data points. Independent, masked graders classified pathology on SD-OCT as RS, RD, or RS/RD and graded WF-FAF images for either hypoautofluorescent areas or mixed autofluorescence (AF) (hyper-AF, iso-AF, hyper-AF with hypo-AF, hyper-AF with iso-AF, or hypo-AF with iso-AF). Results: There was no statistically significant correlation between the autofluorescence pattern and the type of retinal abnormality ( P = .74). Conclusions: High variability was found in the characterization of WF-FAF in patients with RS and RD. SD-OCT remains the criterion-standard imaging modality in distinguishing RS from RD in clinically ambiguous cases.

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