Reflectance and Thickness Analysis of Retinal Layers in Patients with Epiretinal Membranes Using Spectral-Domain OCT before and after Vitrectomy with Membrane Peeling

2019 ◽  
Vol 3 (4) ◽  
pp. 371-378
Author(s):  
Ajay E. Kuriyan ◽  
Delia Cabrera DeBuc ◽  
William E. Smiddy
Keyword(s):  
Spectral Domain ◽  
Epiretinal Membranes ◽  
Membrane Peeling ◽  
Retinal Layers ◽  
Spectral Domain Oct ◽  
Before And After

Diagnostic precision of a microscope-integrated intraoperative OCT device in patients with epiretinal membranes

2017 ◽  
Vol 28 (3) ◽  
pp. 329-332 ◽  
Author(s):  
Christoph Leisser ◽  
Nino Hirnschall ◽  
Christoph Hackl ◽  
Birgit Döller ◽  
Ralph Varsits ◽  
...  
Keyword(s):  
Intraoperative Imaging ◽  
Diagnostic Technique ◽  
Spectral Domain ◽  
Vitreomacular Traction ◽  
Interobserver Reproducibility ◽  
Epiretinal Membranes ◽  
Spectral Domain Oct ◽  
Macular Holes ◽  
Imaging Results ◽  
Sd Oct

Purpose: Preoperative and postoperative optical coherence tomography (OCT) of macular pathologies can be regarded as the gold standard diagnostic technique, providing detailed information on the microstructures of the macula for planning the surgical procedure and comparing improvements after surgery in the follow-up period. Intraoperative use of OCT is a novel application to support surgeons during macular surgery. The aim of this study was to examine the diagnostic precision of a microscope-integrated intraoperative spectral-domain OCT (i-OCT) device and compare imaging results to a stand-alone spectral-domain OCT (SD-OCT) device. Methods: This prospective study included 41 eyes of 41 patients scheduled for pars plana vitrectomy with membrane peeling due to an idiopathic epiretinal membrane (ERM). Intraoperative imaging with the i-OCT device was performed at the beginning of the surgery and compared to preoperative SD-OCT images. Results: Preoperative and intraoperative SD-OCT evaluations showed high intraobserver and interobserver reproducibility for the presence of ERM, lamellar macular hole, and vitreomacular traction. For intraretinal cystoid changes, intraobserver and interobserver reproducibility for both OCTs was rather poor, mainly due to microcystic changes. Conclusions: Intraoperative spectral-domain OCT offers high reproducibility regarding the visibility of ERM, lamellar macular holes, and vitreomacular traction. Microcystic changes cause discrepancies in interpretation, often simply diagnosed as retinal thickening.

Retinal layers in prolactinoma patients: a spectral-domain optical coherence tomography study

2021 ◽  
Author(s):  
Berna Evranos Ogmen ◽  
Nagihan Ugurlu ◽  
Sevgül Faki ◽  
Sefika Burcak Polat ◽  
Reyhan Ersoy ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Retinal Layers

scholarly journals Optic Disc Vascularization in Glaucoma: Value of Spectral-Domain Optical Coherence Tomography Angiography

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Pierre-Maxime Lévêque ◽  
Pierre Zéboulon ◽  
Emmanuelle Brasnu ◽  
Christophe Baudouin ◽  
Antoine Labbé
Keyword(s):  
Visual Field ◽  
Univariate Analysis ◽  
Normal Subjects ◽  
Vessel Density ◽  
Spectral Domain ◽  
Control Group ◽  
Mean Deviation ◽  
Ganglion Cell Complex ◽  
Fiber Layer ◽  
Spectral Domain Oct

Purpose. To detect changes in optic nerve head (ONH) vascularization in glaucoma patients using spectral-domain OCT angiography (OCT-A).Material and Method. Fifty glaucoma patients and 30 normal subjects were evaluated with OCT-A (AngioVue®, Optovue). The total ONH vessel density and temporal disc vessel density were measured. Clinical data, visual field (VF) parameters, and spectral-domain OCT evaluation (RNFL: retinal nerve fiber layer thickness, GCC: ganglion cell complex thickness, and rim area) were recorded for glaucoma patients. Correlations among total and temporal ONH vessel density and structural and VF parameters were analyzed.Results. In the glaucoma group, total and temporal ONH vessel density were reduced by 24.7% (0.412 versus 0.547;p<0.0001) and 22.88% (0.364 versus 0.472;p=0.001), respectively, as compared with the control group. Univariate analysis showed significant correlation between rim area (mm2) and temporal ONH vessel density (r=0.623;p<0.0001) and total ONH vessel density (r=0.609;p<0.0001). Significant correlations were found between temporal and total ONH vessel density and RNFL, GCC, VF mean deviation, and visual field index.Conclusion. In glaucoma patients OCT-A might detect reduced ONH blood vessel density that is associated with structural and functional glaucomatous damage. OCT-A might become a useful tool for the evaluation of ONH microcirculation changes in glaucoma.

scholarly journals Influences of Central Bouquet Alterations on the Visual Outcome in Eyes Receiving Epiretinal Membrane Surgery

2021 ◽  
Vol 11 (3) ◽  
pp. 926
Author(s):  
Max Philipp Brinkmann ◽  
Stephan Michels ◽  
Carolin Brinkmann ◽  
Mario Damiano Toro ◽  
Nicole Graf Johansen ◽  
...  
Keyword(s):  
Visual Outcome ◽  
Functional Results ◽  
Internal Limiting Membrane ◽  
Ilm Peeling ◽  
Epiretinal Membranes ◽  
Staging Systems ◽  
Before And After ◽  
Pars Plana

Background: Previous studies have shown that epiretinal membranes (ERMs) may be associated with abnormal outer retinal anatomy. However, long-term morphological and functional results of pars plana vitrectomy (PPV) with ERM and internal limiting membrane (ILM) peeling in eyes with central bouquet (CB) alterations have not yet been investigated. Methods: In a retrospective, consecutive study all patients underwent best corrected visual acuity (BCVA) testing and spectral domain optical coherence tomography (SD-OCT) before and after a mean of 20 months (range 3–70 months) postoperatively. CB abnormalities and ERMs were classified according to Govetto’s staging systems. Results: Of the 67 eyes, 22 (34%) showed CB abnormalities at baseline. The mean BCVA increased from 0.42 at baseline to 0.20 LogMAR at final follow-up (p < 0.001). Neither ERM stage (p = 0.06) nor CB stage (p = 0.939) at baseline were significant predictors of vision improvement following surgery. Conclusions: Our results show that baseline BCVA, but not classification of CB changes and ERM at baseline, seems to be a useful predictor for functional outcomes following PPV with ERM and ILM peeling in the long-term.

Analysis of Peripapillary Atrophy According to the Optic Disc Shape Using Spectral Domain OCT

2013 ◽  
Vol 54 (11) ◽  
pp. 1748
Author(s):  
Geun Yeong Kim ◽  
You Kyung Lee ◽  
Jung Il Moon ◽  
Myoung Hee Park
Keyword(s):  
Optic Disc ◽  
Spectral Domain ◽  
Spectral Domain Oct ◽  
Peripapillary Atrophy

scholarly journals Anatomical and functional significance of ectopic inner foveal layer (EIFL) in epiretinal membrane (ERM)

2021 ◽  
Vol 7 (2) ◽  
pp. 366-371
Author(s):  
Sunil Ganekal ◽  
Varun Ganekal
Keyword(s):  
Visual Acuity ◽  
Epiretinal Membrane ◽  
Visual Outcome ◽  
Surgical Removal ◽  
Chi Square ◽  
Epiretinal Membranes ◽  
Stage 4 ◽  
Before And After ◽  
Chi Square Test ◽  
Stage 1

To compare the visual acuity outcomes after surgical treatment of epiretinal membranes (ERM) in cases with and without ectopic inner foveal layers (EIFL). : A total of 100 eyes of 98 patients with idiopathic ERM were retrospectively staged according to the newer OCT classification and divided into two groups on the basis of presence or absence of EIFL. The two groups were evaluated for various parameters including visual acuity, thickness of the EIFL, re-appearance of the foveal contour, outer retinal changes and complications before and after ERM peeling. Correlation analysis was done using chi square test and p-values were obtained for corresponding variables.: Of 100 eyes with ERM, 20% had stage 1, 29% had stage 2, 42% had stage3 & 9% had stage 4 disease. VA was worse in eyes with EIFL as compared those without it. Correlation of VA with EIFL thickness however was not significant. Surgical removal of ERM didn’t alter EIFL frequency though the thickness decreased. New EIFL appeared in 4% eyes and 35% demonstrated thickened fovea after surgery. Anatomical reappearance of foveal contour was poorer in eyes with EIFL. Outer retinal changes were more common in non EIFL eyes. Lamellar holes and nontractional cysts were more common in EIFL eyes.: EIFL is a significant prognostic tool to predict the visual outcome of surgery in cases of Epiretinal membrane. EIFL eyes did not regain foveal contour, had less outer retinal damage but were associated with poorer visual outcomes.

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