Medical News Today: An introduction to eyes and how they work

The eyes are incredibly complex organs. In this article, we explain their anatomy, how they work, and describe some conditions that affect the eyes.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Eye Health / Blindness Source Type: news

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Optic disc segmentation is a very important step in diagnosing glaucoma disease, where untreated glaucoma leads to irreversible loss of vision. Glaucoma is the second cause of blindness around the world. In this work, manual thresholding technique in optic disc segmentation is applied, evaluated, and compared with other segmentation techniques. The optic disc segmented by thresholding level 180 after vessel removal by morphological operation to improve segmentation process, and then boundary smoothed by dilating and eroding operation and border clearing; at final segmentation step, the segmented part was shaped to construc...
Source: Journal of Clinical Engineering - Category: Medical Devices Tags: FEATURE ARTICLES Source Type: research
In conclusion, the iChEC-1 line presents a suitable immortalized human ChEC line for future in vitro studies of AMD.
Source: Microvascular Research - Category: Biochemistry Source Type: research
(University College London) A new therapy aimed at improving the sight of people with one of the most common forms of childhood blindness, has shown 'very promising' initial results, according to a study involving UCL researchers.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
MacLaren Inherited retinal degenerations are the leading cause of blindness in the working population. X-linked retinitis pigmentosa (XLRP), caused by mutations in the Retinitis pigmentosa GTPase regulator (RPGR) gene is one of the more severe forms, and female carriers of RPGR mutations have a variable presentation. A retrospective review of twenty-three female RPGR carriers aged between 8 and 76 years old was carried out using fundoscopy, autofluorescence imaging (AF), blue reflectance (BR) imaging and optical coherence tomography (OCT). Confirmation of the genetic mutation was obtained from male relatives or Sanger...
Source: Genes - Category: Genetics & Stem Cells Authors: Tags: Article Source Type: research
(University of Pennsylvania School of Medicine) A new treatment for patients with a form of congenital retinal blindness has shown success in improving vision, according to results published today in Nature Medicine led by researchers at the Scheie Eye Institute in the Perelman School of Medicine at the University of Pennsylvania.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
CONCLUSION: Increased utilization of anti-VEGF agents can reduce SVI and legal blindness in patients with DME in Japan. This would also be associated with substantial savings in patient and caregiver productivity loss. PMID: 30550375 [PubMed - as supplied by publisher]
Source: Journal of Medical Economics - Category: Health Management Tags: J Med Econ Source Type: research
CONCLUSIONS: There is currently no high-quality evidence for the effects of subconjunctival draining minimally-invasive glaucoma devices for medically uncontrolled open angle glaucoma. Properly designed RCTs are needed to assess the medium- and long-term efficacy and safety of this technique. PMID: 30554418 [PubMed - as supplied by publisher]
Source: Cochrane Database of Systematic Reviews - Category: General Medicine Authors: Tags: Cochrane Database Syst Rev Source Type: research
Publication date: January 2019Source: Molecular Immunology, Volume 105Author(s): Lina Jia, Feng Sun, Jie Wang, Ding Gong, Lina YangAbstractChlamydia trachomatis (Ct) infections can cause bacterial sexually-transmitted and preventable blindness. The Ct infections induced excessive cytokines generation which attributed to pathologic changes in host cells. However, the precise mechanisms of Ct-induced cytokines production are still unclear.CT143 protein was identified as a novel Ct specific protein with high immunogenicity. In the present study. The CT143 fusion protein was recombined and purified. The mice immune serum was p...
Source: Molecular Immunology - Category: Allergy & Immunology Source Type: research
Authors: Bohn T Abstract Carotenoids are C-30, C-40 or C-50 terpenoids produced by a number of bacteria, fungi, and plants. In addition to acting as vitamin A precursors such as β-carotene, their dietary intake and blood plasma/serum and tissue levels have been associated in several epidemiological studies to the reduced incidence of chronic diseases, including the reduction of type 2 diabetes and other cardiometabolic diseases, as well as some types of cancer. Lutein and zeaxanthin also appear to play a role in the amelioration of age-related macular degeneration (AMD), the main cause of blindness in the elde...
Source: International Journal for Vitamin and Nutrition Research - Category: Nutrition Tags: Int J Vitam Nutr Res Source Type: research
Night blindness occurs when an existing eye condition leads to an inability to see clearly in dim light. Treatments depend on the cause but often involve managing the underlying condition. Learn more here.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Eye Health / Blindness Source Type: news
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