1. Articles from Chenjin Jin

    1-5 of 5
    1. Quantitative Evaluation of Parafoveal Microvasculature Changes in Eyes with Exudative Circumscribed Choroidal Haemangioma : An Optical Coherence Tomography Angiography Study

      Quantitative Evaluation of Parafoveal Microvasculature Changes in Eyes with Exudative Circumscribed Choroidal Haemangioma : An Optical Coherence Tomography Angiography Study

      Background : To quantitative evaluation of parafoveal microvasculature changes in eyes with exudative circumscribed choroidal haemangioma (CCH) compared with age- and gender-controlled healthy eyes. Methods : This was a cross-sectional, case-control study. 82 eyes of eighty-two subjects including 41 eyes of forty-one subjects in the exudative CCH group and 41 eyes of forty-one subjects in the age- and gender-controlled healthy eye group were enrolled in this study. Optical coherence tomography angiography (OCTA) was performed in each subject, and the capillary density (CD) of superficial plexus, deep capillary plexus, and the choriocapillaris as well as the area of foveal avascular zone (FAZ) were ...

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    2. OCT-Angiography comparison between obstructive sleep apnea children and normal subjects in China

      OCT-Angiography comparison between obstructive sleep apnea children and normal subjects in China

      Purpose Using optical coherence tomography angiography (OCT-A) to compare the retinal micro vessel alteration between obstructive sleep apnea (OSA) children and normal subjects. Methods One hundred-thirty-two eyes (132 participants) were recruited in this study. The average age of OSA group (66 eyes) and healthy control group (66 eyes) were 6.23 ± 1.73 and 6.76 ±1.89 years, respectively). The retinal vascular network density indices and the fovea avascular zone (FAZ) size were analyzed by OCT-A. Results All of the OCT-A parafoveal vessel indices, including the vascular diameter (VD), vascular area density (VAD), vascular skeleton density (VSD), and vessel ...

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    3. Effect of Choroidal Vessel Density on the Ellipsoid Zone and Visual Function in Retinitis Pigmentosa Using Optical Coherence Tomography Angiography

      Effect of Choroidal Vessel Density on the Ellipsoid Zone and Visual Function in Retinitis Pigmentosa Using Optical Coherence Tomography Angiography

      Purpose : We evaluate the effect of choroidal vessel density on the residual length of the ellipsoid zone (EZ) and visual function in patients with retinitis pigmentosa (RP) using optical coherence tomography angiography (OCTA). Methods : Fifty-three patients with RP ( n = 101 eyes) and 53 normal participants ( n = 76 eyes) were enrolled in this study. Patients with RP were assigned to three groups according to their best-corrected visual acuity (BCVA). All patients underwent ophthalmologic examinations, including BCVA, fundus examination performed with a slit-lamp using an indirect 90 diopter (D) lens, OCTA, full-field electroretinogram (ERG), and visual field. The choroidal vessel density in ...

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    4. Comparison of vascular parameters between normal cynomolgus macaques and healthy humans by optical coherence tomography angiography

      Comparison of vascular parameters between normal cynomolgus macaques and healthy humans by optical coherence tomography angiography

      Background The metabolic activity of retina is higher than other human tissues and is crucial to the vision. Cynomolgus macaques is widely used in ophthalmic disease research. The evaluation and comparison of macular and optic disc vascular circulation parameters between normal adult cynomolgus macaques and healthy adult humans using OCT-A can promote better use of nonhuman primate models in studies of ophthalmic vascular disease. Methods Twelve normal adult cynomolgus macaques with a mean age of 4.91 ± 0.43 years were studied for data collection. The macula of 28 adult healthy humans (14 males and 14 females), with a mean ...

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    5. Comparison between non-visualized polyps and visualized polyps on optical coherence tomography angiography in polypoidal choroidal vasculopathy

      Comparison between non-visualized polyps and visualized polyps on optical coherence tomography angiography in polypoidal choroidal vasculopathy

      Purpose To determine the underlying reasons for the non-visualization of polyps on en face optical coherence tomography angiography (OCTA) in patients with polypoidal choroidal vasculopathy (PCV). Methods A cross-sectional study of consecutive treatment-naïve 30 eyes with active PCV was included. Results of fundus photography, fundus fluorescein angiography (FFA), indocyanine green angiography (ICGA), spectral domain optical coherence tomography (SD-OCT), and en face OCTA were analyzed. Results A total of 64 active polyps were found on FFA and ICGA in 30 eyes. On OCTA, 42/64 (65.6%) polyps were visualized, while 22/64 (34.4%) polyps were non-visualized. There were ...

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    1-5 of 5
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    Comparison between non-visualized polyps and visualized polyps on optical coherence tomography angiography in polypoidal choroidal vasculopathy Comparison of vascular parameters between normal cynomolgus macaques and healthy humans by optical coherence tomography angiography Effect of Choroidal Vessel Density on the Ellipsoid Zone and Visual Function in Retinitis Pigmentosa Using Optical Coherence Tomography Angiography OCT-Angiography comparison between obstructive sleep apnea children and normal subjects in China Quantitative Evaluation of Parafoveal Microvasculature Changes in Eyes with Exudative Circumscribed Choroidal Haemangioma : An Optical Coherence Tomography Angiography Study Systems and methods for reflectance-based projection-resolved optical coherence tomography angiography Health collaborations forged at CIIE begin to bear fruit Method for determining the topography of the cornea of an eye Optical measurement system using multicore optical fiber Fiber optic rotary joints and methods of using and manufacturing same High performance OCTA enabled by combining features of shape, intensity, and complex decorrelation A Novel 3D Segmentation Approach for Extracting Retinal Layers from Optical Coherence Tomography Images