1. 1-5 of 5
    1. Optical Coherence Tomography Angiography Features of Macular Epiretinal Neovascularization In Eales’ Disease: A Case Rreport

      Optical Coherence Tomography Angiography Features of Macular Epiretinal Neovascularization In Eales’ Disease: A Case Rreport

      Background: Eales disease primarily affects the peripheral retina. However, posterior involvement can be seen. Macular epiretinal neovascularization is not commonly seen in Eales disease. This report highlights the morphology and origin of macular epiretinal neovascularization (ERN) using multimodal retinal imaging, including optical coherence tomography angiography (OCTA). Results: A 35-year-old man with no history of systemic disorders presented with gradual decrease of vision in his left eye. Fundus examination of his right eye showed peripheral sclerosed blood vessels, neovascularization of the optic disc and elsewhere, and macular ERN. The view of the left fundus was limited by vitreous haemorrhage. Fluorescein angiography ...

      Read Full Article
    2. Automated Retinal Boundary Segmentation of Optical Coherence Tomography Images Using an Improved Canny Operator

      Automated Retinal Boundary Segmentation of Optical Coherence Tomography Images Using an Improved Canny Operator

      Retinal segmentation is a prerequisite for quantifying retinal structural features and diagnosing related ophthalmic diseases. Canny operator is recognized as the best boundary detection operator so far, and is often used to obtain the initial boundary of the retina in retinal segmentation. However, the traditional Canny operator is susceptible to vascular shadows, vitreous artifacts, or noise interference in retinal segmentation, causing serious misdetection or missed detection. This paper proposed an improved Canny operator for automatic segmentation of retinal boundaries. The improved algorithm solves the problems of the traditional Canny operator by adding a multi-point boundary search step on the basis ...

      Read Full Article
    3. Optical Coherence Tomography Applied to Non-Destructive Seed Coat Thickness Measurement

      Optical Coherence Tomography Applied to Non-Destructive Seed Coat Thickness Measurement

      Background: Seed coat thickness is a parameter of interest in lentil breeding and processing. Methods described in the literature are destructive and time consuming, limiting the usefulness of this seed characteristic in breeding or grading. In this study, a low-cost optical coherence tomography (OCT) system (OQ Labscope 2.0 from Lumedica, Inc., Durham, NC USA) was used to non-destructively measure lentil seed coat thicknesses. These measurements were compared to destructive measurements obtained via optical microscopy of cross-sectioned seeds. Results: Measurements from the two methods were comparable with consistent trends in thickness and population separability among the five lentil accessions used ...

      Read Full Article
      Mentions: Lumedica
    4. Investigation of the Pathophysiology of the Retina and Choroid in Parkinson's Disease by Optical Coherence Tomography

      Investigation of the Pathophysiology of the Retina and Choroid in Parkinson's Disease by Optical Coherence Tomography

      Purpose The pathology of Parkinson's disease (PD) is suspected to affect the retina and choroid. We investigated changes in the retina and choroid of patients with PD using optical coherence tomography (OCT). Methods We examined 14 patients with PD and 22 patients without PD. Patients without PD had no ophthalmic pathology other than cataracts and neurodegenerative disorders. The retinal nerve fiber layer, ganglion cell layer + inner plexiform layer, and choroidal thickness were compared between both groups. Additionally, the choroidal image was divided into the choroid area, luminal area, and interstitial area using the binarization method, and the area of ...

      Read Full Article
    5. Optical Coherence Tomography Biomarkers inPatients With Macular Edema Secondary to RetinalVein Occlusion

      Optical Coherence Tomography Biomarkers inPatients With Macular Edema Secondary to RetinalVein Occlusion

      Purpose : To evaluate the impact of optical coherence tomography biomarkers on intravitreal dexamethasone (DEX) implant clinical outcomes in patients with macular edema (ME) secondary to retinal vein occlusion (RVO). Additionally, the effect of DEX on central retinal thickness (CRT) and visual acuity (BCVA) was also evaluated. Methods : Retrospective study conducted on a cohort of patients with ME secondary to RVO, either naïve or previously treated, who underwent treatment with DEX implant and had a minimum follow-up of 6 months. Success was defined as a CRT < 250µm or a relative reduction of CRT ≥ 10% from baseline. Results : Fifty-seven eyes ...

      Read Full Article
    1-5 of 5
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks