1. Articles from Nadim Rayess

    1-7 of 7
    1. Early Optical Coherence Tomography Findings after Vitreomacular Traction Release

      Early Optical Coherence Tomography Findings after Vitreomacular Traction Release

      After the introduction of intravitreal ocriplasmin (Jetrea; ThromboGenics, Iselin, NJ) for symptomatic vitreomacular traction (VMT), reports began surfacing of diffuse ellipsoid zone (EZ) changes and acute visual loss after treatment. 1–5 Two explanations for these abnormalities have been proposed. 2 Because ocriplasmin is a recombinant protease, the drug may cleave layers in the outer retina beyond the vitreomacular interface. Alternatively, because these changes are found primarily after successful VMT release, the effect could be secondary to a transient increase in mechanical traction on the retina when the vitreous separates.

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    2. Comparison of Radial Versus Raster Spectral-domain Optical Coherence Tomography Scan Patterns at Detecting Macular Pathology

      Comparison of Radial Versus Raster Spectral-domain Optical Coherence Tomography Scan Patterns at Detecting Macular Pathology

      Purpose : To compare the effectiveness of different spectral-domain optical coherence tomography (SD-OCT) scan acquisition patterns (6-line radial vs. 25-line raster) in detecting macular pathology. Methods : Retrospective, observational, case series of patients diagnosed with macular disorders from January 2010 through September 2013. A total of 365 eyes that underwent Heidelberg SD-OCT image acquisition using both 6-line radial and 25-line raster scans were evaluated by two independent graders. 50 eyes were evaluated for each of the following disorders: neovascular age-related macular degeneration (AMD), central retinal vein occlusion (CRVO), branch retinal vein occlusion (BRVO), diabetic macular edema (DME), central serous retinopathy (CSR) and ...

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    3. Optical coherence tomography angiography (OCT-A) of type 2 retinal arteriovenous malformation

      Optical coherence tomography angiography (OCT-A) of type 2 retinal arteriovenous malformation

      Retinal arteriovenous malformations (AVMs) are a rare congenital, nonhereditary vascular abnormality. They are typically unilateral and asymptomatic, ranging from a single arteriovenous communication to a complex anastomotic system. 1,2 The lesions most commonly involve the superotemporal arcade (41%), papillomacular bundle (34%), and optic disc (6%) 2,3 and are classified into 3 groups by Archer on the basis of capillary characteristics and systemic findings. 1 Characteristically, the lesions demonstrate rapid filling without capillary leakage on fluorescein angiography.

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    4. Radial versus raster spectral-domain optical coherence tomography scan patterns for detection of macular fluid in neovascular age-related macular degeneration

      Radial versus raster spectral-domain optical coherence tomography scan patterns for detection of macular fluid in neovascular age-related macular degeneration

      Background/aims To compare the 12-line radial to the 25-line raster spectral-domain optical coherence tomography (SD-OCT) acquisition patterns at detecting intraretinal or subretinal fluid in eyes with neovascular age-related macular degeneration (AMD). Methods Retrospective cross-sectional analysis of 200 eyes with neovascular AMD. Sequential 12-line radial and 25-line raster scans were evaluated for the presence of intraretinal/subretinal fluid. Results A total of 394 SD-OCT scans were interpreted (1.97 scans per eye). The 12-line radial detected intraretinal/subretinal fluid in all but 7 of 394 scans (1.7%; 95% CI 0.7% to 3.6%), resulting in a sensitivity of ...

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    5. Spectral-Domain Optical Coherence Tomography in Acute Posterior Vitreous Detachment

      Spectral-Domain Optical Coherence Tomography in Acute Posterior Vitreous Detachment

      Posterior vitreous detachment (PVD) is a physiologic process that occurs with aging, having a reported incidence of 53% in patients >50 years old. 1 With advancing age, the vitreous progressively liquefies and its extracellular matrix undergoes remodeling, facilitating the eventual formation of a PVD. 1 Although usually a benign event, complications such as macular traction, macular hole, vitreous hemorrhage, retinal tears, and retinal detachment may arise.

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    6. Spectral-Domain Optical Coherence Tomography Features of Bilateral Chorioretinitis Sclopetaria

      Spectral-Domain Optical Coherence Tomography Features of Bilateral Chorioretinitis Sclopetaria

      The authors report a case of bilateral chorioretinitis sclopetaria in a 31-year-old man who sustained a perforating gunshot trauma. On presentation, best corrected visual acuity was light perception in the right eye and counting fingers at 5 feet in the left eye. Funduscopic examination demonstrated bilateral peripapillary fibrogliotic lesions with associated pigmentation in the posterior pole. Spectral-domain optical coherence tomography scans revealed bilateral full-thickness hyperreflectivity consistent with chorioretinal disruption. The patient was closely monitored, and his vision remained stable at 6-week follow-up.

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    7. Radial versus raster spectral-domain optical coherence tomography scan patterns for detection of macular pathology

      Radial versus raster spectral-domain optical coherence tomography scan patterns for detection of macular pathology

      Purpose To compare the 6-line radial versus the 25-line raster spectral-domain optical coherence tomography (SD-OCT) acquisition patterns at detecting intraretinal fluid, subretinal fluid, vitreomacular traction, and full-thickness macular hole (MH). Design Retrospective cross-sectional analysis. Methods Series of 365 eyes with neovascular age-related macular degeneration (AMD), diabetic macular edema (DME), central and branch retinal vein occlusion (CRVO/BRVO), central serous chorioretinopathy, vitreomacular traction, and full-thickness MH. Sequential 6-line radial and 25-line raster scans were evaluated for intraretinal/subretinal fluid and when applicable, vitreomacular traction and MH. Results For neovascular AMD (133 scans), seven 25-line raster scans confirmed subretinal/intraretinal fluid not ...

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    1-7 of 7
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    Radial versus raster spectral-domain optical coherence tomography scan patterns for detection of macular pathology Spectral-Domain Optical Coherence Tomography Features of Bilateral Chorioretinitis Sclopetaria Spectral-Domain Optical Coherence Tomography in Acute Posterior Vitreous Detachment Radial versus raster spectral-domain optical coherence tomography scan patterns for detection of macular fluid in neovascular age-related macular degeneration Optical coherence tomography angiography (OCT-A) of type 2 retinal arteriovenous malformation Comparison of Radial Versus Raster Spectral-domain Optical Coherence Tomography Scan Patterns at Detecting Macular Pathology Early Optical Coherence Tomography Findings after Vitreomacular Traction Release A PhD position is available in OPIRA laboratory at the Biomedical Engineering Department of the University of Illinois in Chicago A PhD position is available in OPIRA laboratory at the Biomedical Engineering Department of the University of Illinois in Chicago Artifact Rates for 2D Retinal Nerve Fiber Layer Thickness Versus 3D Neuroretinal Rim Thickness Using Spectral-Domain Optical Coherence Tomography Development of Deep Learning Models to Predict Best-Corrected Visual Acuity from Optical Coherence Tomography Machine learning helps improve diagnostic ability of subclinical keratoconus using Scheimpflug and OCT imaging modalities