1. Articles from Eric H. Souied

    1-24 of 59 1 2 3 »
    1. Optical Coherence Tomography Angiography Quantitative Assessment of Exercise-Induced Variations in Retinal Vascular Plexa of Healthy Subjects

      Optical Coherence Tomography Angiography Quantitative Assessment of Exercise-Induced Variations in Retinal Vascular Plexa of Healthy Subjects

      Purpose : To assess the variations induced by exercise in retinal vascular density (VD), foveal avascular zone (FAZ) area, and fractal dimension (FD) at the superficial (SCP) and deep (DCP) capillary plexa in healthy subjects by means of optical coherence tomography angiography (OCT-A). Methods : Consecutive healthy subjects were prospectively included into two groups, ranging in age from 18 to 29 years for group 1 and from 30 to 40 years for group 2. Data from 3 × 3-mm OCT-A acquisition centered on the macula at SCP and DCP (VD, FAZ area, and FD), heart rate, and systolic-diastolic blood pressure were collected before ...

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    2. Early hydroxychloroquine retinopathy: optical coherence tomography abnormalities preceding Humphrey visual field defects

      Early hydroxychloroquine retinopathy: optical coherence tomography abnormalities preceding Humphrey visual field defects

      Background/Aims Hydroxychloroquine (HCQ) retinopathy may result in severe and irreversible vision loss, emphasising the importance of screening and early detection. The purpose of this study is to report the novel finding of early optical coherence tomography (OCT) abnormalities due to HCQ toxicity that may develop in the setting of normal Humphrey visual field (HVF) testing. Methods Data from patients with chronic HCQ exposure was obtained from seven tertiary care retina centres. Ten patients with HCQ-associated OCT abnormalities and normal HVF testing were identified. Detailed analysis of the OCT findings and ancillary tests including colour fundus photography, fundus autofluorescence, multifocal ...

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    3. CHOROIDAL NEOVASCULAR AREA AND VESSEL DENSITY COMPARISON BETWEEN TWO SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY DEVICES

      CHOROIDAL NEOVASCULAR AREA AND VESSEL DENSITY COMPARISON BETWEEN TWO SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY DEVICES

      Purpose: To compare choroidal neovascularization (CNV) area and vessel density (VD) measurements between two different swept-source optical coherence tomography angiography (SS-OCTA) devices. Methods: En face optical coherence tomography angiography (OCTA) images of patients affected by neovascular age-related macular degeneration were collected prospectively from two devices: Zeiss PLEX Elite 9000 (Carl Zeiss Meditec, Dublin, CA) and Topcon DRI OCT Triton SS-OCTA (Topcon, Tokyo, Japan). Choroidal neovascularization area and VD of images were measured and analyzed with ImageJ software by two readers to evaluate the agreement between two devices, with respect to different image size (3 × 3 and 6 × 6 mm) and ...

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    4. Optical coherence tomography angiography in exudative age-related macular degeneration: a predictive model for treatment decisions

      Optical coherence tomography angiography in exudative age-related macular degeneration: a predictive model for treatment decisions

      Aims To evaluate on optical coherence tomography angiography (OCT-A), the predictive role of different qualitative findings of choroidal neovascularisations (CNV) in assessing the status of exudative age-related macular degeneration (eAMD) and to develop a potential model to predict the CNV activity. Methods Retrospective review of the multimodal imaging records of patients with eAMD obtained during treatment for type 1 or type 2 CNV. The qualitative analysis of CNVs on OCT angiograms assessed the presence or absence of tiny branching vessels, loops, peripheral anastomotic arcades and choriocapillaris hypointense halo. These findings were then correlated with those of structural OCT scans. A ...

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    5. MULTIMODAL IMAGING OF CHOROIDAL AND OPTIC DISK VESSELS NEAR OPTIC DISK PITS

      MULTIMODAL IMAGING OF CHOROIDAL AND OPTIC DISK VESSELS NEAR OPTIC DISK PITS

      Purpose: To describe modern multimodal imaging of the choroidal and optic disk vessels in optic disk pits. Methods: Case reports of four patients with optic disk pit who underwent multimodal imaging of the optic pit and surrounding structures. Patients included in this article were found to have optic disk pits and subsequently underwent multimodal imaging. Results: Cilioretinal arteries were present in two of the four cases (50%). SPECTRALIS optical coherence tomography showed intraretinal and subretinal fluid in all cases. Small vessels in the choroid and in the disk around the pit were also present in all cases through optical coherence ...

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    6. Clinical applications of optical coherence tomography angiography: What we have learnt in the first 3 years

      Clinical applications of optical coherence tomography angiography: What we have learnt in the first 3 years

      A review of the literature from 2014 to 2016 was conducted, focusing on the results of optical coherence tomography angiography in different chorioretinal diseases. In only 3 years, optical coherence tomography angiography has been shown to be an effective tool for diagnosing choroidal neovascularization complicating age-related macular degeneration, pathologic myopia, and inflammatory conditions. The technique has sometimes been considered superior to conventional multimodal imaging, for example, in choroidal neovascularization associated with chronic central serous chorioretinopathy or multifocal choroiditis. In retinal vascular diseases, optical coherence tomography angiography has helped to understand the condition described as paracentral acute middle maculopathy and has ...

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    7. VASCULAR REMODELING OF CHOROIDAL NEOVASCULARIZATION AFTER ANTI–VASCULAR ENDOTHELIAL GROWTH FACTOR THERAPY VISUALIZED ON OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      VASCULAR REMODELING OF CHOROIDAL NEOVASCULARIZATION AFTER ANTI–VASCULAR ENDOTHELIAL GROWTH FACTOR THERAPY VISUALIZED ON OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      Purpose: To describe the qualitative and quantitative changes in choroidal neovascularization (CNV) flow pattern after anti–vascular endothelial growth factor therapy, by optical coherence tomography angiography (OCTA). Methods: Consecutive patients with neovascular age-related macular degeneration underwent multimodal imaging, including OCTA at initial examination and at last visit. High-flow networks in the choriocapillaris segmentation of OCTA were qualitatively and quantitatively analyzed at baseline and at follow-up, to characterize vascular flow changes after anti–vascular endothelial growth factor treatment and to correlate these changes with final exudation signs on spectral domain optical coherence tomography. Results: Seventeen eyes were included. Mean follow-up was ...

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    8. Optical Coherence Tomography Angiography Follow-up of Retinal Vein Occlusion

      Optical Coherence Tomography Angiography Follow-up of Retinal Vein Occlusion

      Purpose: To evaluate changes of vascular flow of patients treated with intravitreal injections of anti-vascular endothelial growth factor for macular edema secondary to retinal vein occlusion (RVO) with optical coherence tomography angiography (OCTA). Methods: Patients with RVO with macular edema and treated with intravitreal injections of anti-vascular endothelial growth factors were retrospectively evaluated. The following examinations were performed before and after treatment: best-corrected visual acuity, spectral domain optical coherence tomography, fluorescein angiography, and OCTA (Optovue, Inc). Automatic measurement of vascular density of the superficial and deep capillary plexus was also performed and compared with age- and sex-matched healthy subjects. Results ...

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    9. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY TO DISTINGUISH CHOROIDAL NEOVASCULARIZATION FROM MACULAR INFLAMMATORY LESIONS IN MULTIFOCAL CHOROIDITIS

      OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY TO DISTINGUISH CHOROIDAL NEOVASCULARIZATION FROM MACULAR INFLAMMATORY LESIONS IN MULTIFOCAL CHOROIDITIS

      Purpose: To characterize the macular lesions in multifocal choroiditis using multimodal imaging (MMI) and to evaluate optical coherence tomography angiography (OCTA) in distinguishing neovascular from inflammatory lesions. Methods: Retrospective review of medical records of consecutive patients diagnosed with multifocal choroiditis and macular involvement, between September 2014 and May 2016, were included. All patients underwent standard examination and MMI, including fundus color photography, fundus autofluorescence, fluorescein angiography, and spectral domain optical coherence tomography. They also underwent OCTA examination. Multimodal imaging and OCTA characteristics of inflammatory lesions and choroidal neovascularization (CNV) were compared. Results: Eighteen eyes of 13 patients (11 females) were ...

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    10. ABNORMAL VASCULAR COMPLEX WITHIN AN IDIOPATHIC EPIRETINAL MEMBRANE IMAGED BY OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      ABNORMAL VASCULAR COMPLEX WITHIN AN IDIOPATHIC EPIRETINAL MEMBRANE IMAGED BY OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      Purpose: To report the case 70-year-old patient presenting with preretinal, abnormal vascularization accompanying an idiopathic epiretinal membrane (ERM), identified by optical coherence tomography angiography. Methods: Observational case report of one patient. Results: The authors describe the case of a patient presenting with an ERM on the right eye since March 2011, diagnosed by fundus biomicroscopy and spectral domain optical coherence tomography (Spectralis; Heidelberg Engineering, Heidelberg, Germany). At the last follow-up visit, the patient had a Snellen best-corrected visual acuity of 20/32 in her right eye and 20/20 in her left eye. Although on spectral domain optical coherence tomography ...

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    11. QUALITATIVE AND QUANTITATIVE FOLLOW-UP USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY OF RETINAL VEIN OCCLUSION TREATED WITH ANTI-VEGF: Optical Coherence Tomography Angiography Follow-up of Retinal Vein Occlusion

      QUALITATIVE AND QUANTITATIVE FOLLOW-UP USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY OF RETINAL VEIN OCCLUSION TREATED WITH ANTI-VEGF: Optical Coherence Tomography Angiography Follow-up of Retinal Vein Occlusion

      Purpose: To evaluate changes of vascular flow of patients treated with intravitreal injections of anti-vascular endothelial growth factor for macular edema secondary to retinal vein occlusion (RVO) with optical coherence tomography angiography (OCTA). Methods: Patients with RVO with macular edema and treated with intravitreal injections of anti-vascular endothelial growth factors were retrospectively evaluated. The following examinations were performed before and after treatment: best-corrected visual acuity, spectral domain optical coherence tomography, fluorescein angiography, and OCTA (Optovue, Inc). Automatic measurement of vascular density of the superficial and deep capillary plexus was also performed and compared with age- and sex-matched healthy subjects. Results ...

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    12. Optical coherence tomography angiography in retinal vein occlusion treated with dexamethasone implant: a new test for follow-up evaluation

      Optical coherence tomography angiography in retinal vein occlusion treated with dexamethasone implant: a new test for follow-up evaluation

      To quantitatively and qualitatively analyze patients with macular edema secondary to retinal vein occlusion (RVO) and treated with the intravitreal dexamethasone implant using optical coherence tomography angiography (OCTA). The files of patients treated with intravitreal injection of dexamethasone implant for macular edema secondary to RVO were retrospectively analyzed. Before and after injection, the following data were recorded: best-corrected visual acuity (BCVA), central macular thickness (CMT) measured using spectral-domain optical coherence tomography, fluorescein angiography, and OCTA (Optovue, Inc., Fremont, CA, USA). Results of automatic measurement of vascular density of the superficial capillary plexus (SCP) and deep capillary plexus were obtained before ...

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    13. Normative Data for Vascular Density in Superficial and Deep Capillary Plexuses of Healthy Adults Assessed by Optical Coherence Tomography Angiography

      Normative Data for Vascular Density in Superficial and Deep Capillary Plexuses of Healthy Adults Assessed by Optical Coherence Tomography Angiography

      Purpose : To establish a normative database for vascular density (VD) and foveal avascular zone (FAZ) at the superficial (SCP) and deep capillary plexus (DCP) in healthy subjects with optical coherence tomography (OCT) angiography. Methods : The study was a retrospective chart review of healthy patients who had undergone OCT angiography imaging. A 3- × 3-mm area, centered on the fovea, was scanned for all the study eyes. The automated segmentation allowed separate analysis of the SCP, the DCP, and a comprehensive C-scan including both vascular layers. On the obtained images, VD and FAZ measurements were computed. Interobserver reproducibility and intraobserver repeatability were ...

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    14. Type 1 Choroidal Neovascularization Lesion Size: Indocyanine Green Angiography Versus Optical Coherence Tomography Angiography

      Type 1 Choroidal Neovascularization Lesion Size: Indocyanine Green Angiography Versus Optical Coherence Tomography Angiography

      Purpose : To evaluate the size of type 1 choroidal neovascularization (CNV) in neovascular AMD by optical coherence tomography angiography (OCTA) and to compare with indocyanine green angiography (ICGA). Methods : Patients diagnosed type 1 CNV underwent multimodal imaging by fluorescein angiography (FA), ICGA, spectral-domain (SD)-OCT, and OCTA. Lesion size was measured both on OCTA at the choriocapillaris level with “select area” and “vessel area” functions, incorporated in AngioVue software and on ICGA at intermediate and late phases, by two masked independent readers. Results : Nineteen eyes of 17 patients (mean age 80.6 ± 8.36) were included in the analysis. Mean ...

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    15. Optical coherence tomography angiography: a useful tool for diagnosis of treatment-naïve quiescent choroidal neovascularization

      Optical coherence tomography angiography: a useful tool for diagnosis of treatment-naïve quiescent choroidal neovascularization

      Purpose To describe the optical coherence tomography angiography (OCT-A) features of treatment-naïve quiescent choroidal neovascularization (CNV) secondary to age-related macular degeneration, and to estimate the detection rate for neovascularization by means of OCT-A. Design Diagnostic tool validity assessment. Methods Treatment-naïve quiescent CNV were identified from a pool of patients at 2 retina referral centers. Patients underwent a complete ophthalmologic examination including fluorescein angiography, indocyanine green angiography, spectral-domain OCT and OCT-A. Detection rates of CNV by means of OCT-A were estimated with a second cohort of patients without CNV (negative controls) Results Twenty-two eyes of 20 consecutive patients with ...

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    16. Choroidal structure in eyes with drusen and reticular pseudodrusen determined by binarisation of optical coherence tomographic images

      Choroidal structure in eyes with drusen and reticular pseudodrusen determined by binarisation of optical coherence tomographic images

      Purpose To compare luminal and stromal area of the choroid in eyes with drusen and reticular pseudodrusen (RPD) and to investigate their changes over 24 months. Methods In eyes with drusen and RPD and control subjects, total choroidal, luminal and stromal area were measured on optical coherence tomography B-scans converted to binary images, at baseline and after 24 months. Results Eighteen eyes of 18 subjects for each group were included. In drusen and RPD, we found reduction of mean total choroidal (p=0.0005 and p<0.0001, respectively), luminal (p=0.003 and p<0.0001, respectively) and stromal ...

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    17. Choroidal Caverns: A Novel Optical Coherence Tomography Finding in Geographic Atrophy

      Choroidal Caverns: A Novel Optical Coherence Tomography Finding in Geographic Atrophy

      Purpose : To describe and interpret “choroidal caverns,” an unreported optical coherence tomography (OCT) finding in the choroid of patients with geographic atrophy (GA) secondary to atrophic AMD. Methods : Retrospective analysis of patients with GA. Main outcomes measures included estimation of the prevalence of choroidal caverns, their localization and relation with retinal-choroidal structures by reviewing medical records and multimodal imaging. Results : One hundred twenty consecutive patients (mean age 80.5 ± 8.61 years) were included. Among the 201 eyes with GA, 17 eyes of 15 patients presented choroidal caverns on OCT B-scan in GA areas (a total of 43 choroidal caverns ...

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    18. OCT Angiography in Retinal and Macular Diseases (Textbook)

      OCT Angiography in Retinal and Macular Diseases (Textbook)

      In only a short period of time, the innovative procedure of OCT angiography has become an essential macula imaging technique. Now that it is routinely used in clinical practice, the investigation of retinal and choroidal circulation is noninvasive, which significantly changes the professional’s approach to patients. In this volume, retina specialists and renowned experts share their experience with OCT angiography. They have included numerous color images and presented current ideas to form a base for further research and discussion. This book provides retina specialists, ophthalmologists, and researchers with a first glance at original research and clinical reports on this ...

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    19. Optical coherence tomography angiography in adult-onset foveomacular vitelliform dystrophy

      Optical coherence tomography angiography in adult-onset foveomacular vitelliform dystrophy

      Purpose To describe structural features of eyes with adult-onset foveomacular vitelliform dystrophy (AFVD) on optical coherence tomography angiography (OCT-A) and to evaluate the ability to detect the presence of choroidal neovascularisation (CNV). Methods Consecutive patients presenting at the University Eye Clinic of Creteil with diagnosis of AFVD were included. All patients underwent a complete ophthalmological examination, including fundus autofluorescence, fluorescein angiography, indocyanine green angiography, spectral domain optical coherence tomography and OCT-A by Optovue RTVue XR Avanti. Results Twenty-two eyes of 18 consecutive patients (8 women and 10 men; 68±12.8 years) were included. On OCT-A the presence of subretinal ...

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    20. Optical coherence tomography angiography characteristics of polypoidal choroidal vasculopathy

      Optical coherence tomography angiography characteristics of polypoidal choroidal vasculopathy

      Purpose To analyse the morphological characteristics of polypoidal choroidal vasculopathy (PCV) on optical coherence tomography angiography (OCT-A). Methods Prospective study with consecutive patients affected with PCV were included. All patients underwent a complete ophthalmological examination including fundus photography, fluorescein angiography, indocyanine green angiography, spectral-domain OCT and OCT-A. Results Twelve eyes of 12 patients (mean age 72.6±10.5 years; 4 men and 8 women) were included for analysis. In all eyes (12/12) the segmentation of the choriocapillaris layer on OCT-A revealed the branching vascular network (BVN) as a hyperflow lesion. OCT-A segmentation of the choriocapillaris layer in correspondence ...

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    21. Macular microangiopathy in sickle cell disease using optical coherence tomography angiography

      Macular microangiopathy in sickle cell disease using optical coherence tomography angiography

      Purpose To characterize the optical coherence tomography angiography (OCTA) appearance of the perifoveal macular microvasculature in visually asymptomatic patients with sickle cell disease, and to compare these findings with those of fluorescein angiography (FA). Design Retrospective observational case series. Methods Eighteen eyes of 9 consecutive patients with a median age of 41 years (range: 19-54) with electrophoretic confirmation of sickle cell disease were included and analyzed. A complete ophthalmologic examination was performed, including fundus examination, FA (Spectralis HRA+OCT, Heidelberg Engineering, Heidelberg, Germany), and OCTA (RTVue XR Avanti, Optovue Inc, Fremont, California, USA). Nine eyes of five healthy subjects were ...

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    22. Optical Coherence Tomography Angiography in Central Serous Chorioretinopathy

      Optical Coherence Tomography Angiography in Central Serous Chorioretinopathy

      Purpose . To analyze optical coherence tomography angiography (OCTA) findings in eyes with central serous chorioretinopathy (CSC) and to compare them with those obtained with multimodal imaging. Methods . A series of consecutive patients diagnosed with CSC, underwent OCTA and multimodal imaging, including spectral domain OCT, fluorescein, and indocyanine green angiography. OCTA images were performed at three main depth intervals: automatically segmented outer retina, manually adjusted outer retina, and automatically segmented choriocapillaris. Results . Thirty-three eyes of 32 consecutive patients were analyzed. OCTA showed 3 main anomalies at the choriocapillaris: the presence of dark areas (19/33 eyes) which were frequently associated with ...

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    23. En face enhanced depth imaging optical coherence tomography of polypoidal choroidal vasculopathy

      En face enhanced depth imaging optical coherence tomography of polypoidal choroidal vasculopathy

      Purpose To analyse retinal and choroidal changes associated with polypoidal choroidal vasculopathy (PCV) using en face spectral-domain optical coherence tomography (SD-OCT). Methods In this retrospective and descriptive study, we collected imaging of patients affected with PCV examined using enhanced depth imaging (EDI) SD-OCT, fluorescein and indocyanine green angiography for a qualitative analysis. The three-dimensional reconstruction of 197 transverse sections with EDI SD-OCT at 30 μm intervals provided a virtual macular brick through which 496 sections in the coronal plane resulted in a C-scan or en face OCT image. Results 30 eyes of 30 patients affected with PCV were studied. En ...

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    24. Optical Coherence Tomography Angiography in Retinal Vein Occlusion: Evaluation of Superficial and Deep Capillary Plexa

      Optical Coherence Tomography Angiography in Retinal Vein Occlusion: Evaluation of Superficial and Deep Capillary Plexa

      Purpose To evaluate the optical coherence tomography angiography(OCT-angiography) appearance of the superficial and deep capillary plexa in eyes with retinal vein occlusion (RVO) and to compare these findings with those of fluorescein angiography(FA) and spectral-domain optical coherence tomography(SD-OCT). Design : Retrospective observational case series. Method Patients presenting with RVO to Creteil University Eye Clinic were retrospectively evaluated. All patients had undergone a comprehensive ophthalmic examination including FA, SD-OCT and OCT-angiography. Results There were 54 (31 male, 57%) RVO patients with a mean age of 70 years. The perifoveal capillary arcade was visible in 52 eyes (96%) on OCT-angiography ...

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    1-24 of 59 1 2 3 »
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    1. (59 articles) Eric H. Souied
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