• X-linked congenital stationary night blindness (CSNB) is a rare X-linked non-progressive retinal disorder. (wikipedia.org)
  • Not all Congenital Stationary Night Blindness (CSNB) are inherited in X-linked pattern. (wikipedia.org)
  • The X-linked varieties of congenital stationary night blindness (CSNB) can be differentiated from the autosomal forms by the presence of myopia, which is typically absent in the autosomal forms. (wikipedia.org)
  • The complete form of X-linked congenital stationary night blindness, also known as nyctalopia, is caused by mutations in the NYX gene (Nyctalopin on X-chromosome), which encodes a small leucine-rich repeat (LRR) family protein of unknown function. (wikipedia.org)
  • The incomplete form of X-linked congenital stationary night blindness (CSNB2) is caused by mutations in the CACNA1F gene, which encodes the voltage-gated calcium channel CaV1.4 expressed heavily in retina. (wikipedia.org)
  • Only three rhodopsin mutations have been found associated with congenital stationary night blindness (CSNB). (wikipedia.org)
  • Cortical blindness can be acquired or congenital, and may also be transient in certain instances. (wikipedia.org)
  • Congenital cortical blindness is most often caused by perinatal ischemic stroke, encephalitis , and meningitis . (wikipedia.org)
  • citation needed] The most common symptoms of acquired and transient cortical blindness include: A complete loss of visual sensation and of vision Preservation/sparing of the abilities to perceive light and/or moving, but not static objects (Riddoch syndrome) A lack of visual fixation and tracking Denial of visual loss (Anton-Babinski syndrome) Visual hallucinations Macular sparing, in which vision in the fovea is spared from the blindness. (wikipedia.org)
  • Rarely, a patient with acquired cortical blindness may have little or no insight that they have lost vision, a phenomenon known as Anton-Babinski syndrome . (wikipedia.org)
  • Cortical blindness is the total or partial loss of vision in a normal-appearing eye caused by damage to the brain 's occipital cortex . (wikipedia.org)
  • Acquired cortical blindness is most often caused by loss of blood flow to the occipital cortex from either unilateral or bilateral posterior cerebral artery blockage ( ischemic stroke ) and by cardiac surgery. (wikipedia.org)
  • Cortical blindness and cortical visual impairment (CVI), which refers to the partial loss of vision caused by cortical damage, are both classified as subsets of neurological visual impairment (NVI). (wikipedia.org)
  • NVI and its three subtypes-cortical blindness, cortical visual impairment, and delayed visual maturation -must be distinguished from ocular visual impairment in terms of their different causes and structural foci, the brain and the eye respectively. (wikipedia.org)
  • One diagnostic marker of this distinction is that the pupils of individuals with cortical blindness will respond to light whereas those of individuals with ocular visual impairment will not. (wikipedia.org)
  • A patient with cortical blindness has no vision but the response of his/her pupil to light is intact (as the reflex does not involve the cortex). (wikipedia.org)
  • Therefore, one diagnostic test for cortical blindness is to first objectively verify the optic nerves and the non-cortical functions of the eyes are functioning normally. (wikipedia.org)
  • Patients with cortical blindness will not be able to identify the item being questioned about at all or will not be able to provide any details other than color or perhaps general shape. (wikipedia.org)
  • Fundoscopy should be normal in cases of cortical blindness. (wikipedia.org)
  • Cortical blindness can be associated with visual hallucinations , denial of visual loss ( Anton-Babinski syndrome ), and the ability to perceive moving but not static objects. (wikipedia.org)
  • In patients with acquired cortical blindness, a permanent complete loss of vision is rare. (wikipedia.org)
  • The development of cortical blindness into the milder cortical visual impairment is a more likely outcome. (wikipedia.org)
  • Furthermore, some patients regain vision completely, as is the case with transient cortical blindness associated with eclampsia and the side effects of certain anti-epilepsy drugs. (wikipedia.org)
  • The urgent mission of the Foundation Fighting Blindness is to drive the research that will provide preventions, treatments and cures for people affected by retinitis pigmentosa, age-related macular degeneration, Usher syndrome and the entire spectrum of retinal degenerative diseases. (blindness.org)
  • The Foundation Fighting Blindness thanks our partners for helping to bring hope and results to people affected by retinal degenerative diseases. (blindness.org)
  • Driving Research - Saving Sight - read about the research and fundraising efforts helping to end blindness in the Foundation Fighting Blindness' 2017 Annual Report. (blindness.org)
  • The mission of the Foundation Fighting Blindness is to fund research that will lead to the prevention, treatment and cures for the entire spectrum of retinal degenerative diseases, including retinitis pigmentosa, macular degeneration, Usher syndrome, Stargardt disease and related conditions. (wikipedia.org)
  • The Foundation Fighting Blindness was founded as the National Retinitis Pigmentosa Foundation in 1971 by Gordon and Lulie Gund, Bernard and Beverly Berman, and other dedicated leaders to find cures for retinal degenerations at a time when very little was known about those vision-robbing diseases. (wikipedia.org)
  • Blind from retinitis pigmentosa, Gund is Chairman of the Foundation Fighting Blindness and Chief Executive Officer and Chairman of Gund Investment Corporation. (wikipedia.org)
  • The Foundation Fighting Blindness Clinical Research Institute works to accelerate the translation of laboratory-based research into clinical trials for treatments and cures of retinal degenerative diseases. (wikipedia.org)
  • As a support organization and the translational arm of the Foundation Fighting Blindness, it aims to develop a bridge between scientific, clinical, governmental, pharmaceutical and financial communities to advance clinical trials of sight-saving treatments and therapies. (wikipedia.org)
  • The Foundation Fighting Blindness currently funds more than 120 grants, including the modules of 14 Centers. (wikipedia.org)
  • POB Trust was established and registered by Trust Act in July, 2007 as a leading volunteer eye care organization with the sole mission of preventing blindness and preserving sight. (wikipedia.org)
  • The keeping of accurate statistics is of great importance, and in order to keep statistical records it is necessary to have a clear definition of blindness. (springer.com)
  • SPECIAL REPORT / Europe needs a unified definition of blindness to help tackle the condition that costs billions of euros in treatment and loss of economic activity, much of which could be saved, according to a study for the European Forum Against Blindness (EFAB), conducted across six countries. (euractiv.com)
  • The prime objective of POB Trust is to promote and sustain a global campaign against all forms of avoidable blindness with emphasis on deprived communities. (wikipedia.org)
  • About 80% of blindness is avoidable (it can be prevented or cured). (wikipedia.org)
  • During the period 1996 to 1998, through a series of consultations between the Programme Advisory Group (PAG) of WHO, the Partnership Committee, and the Task Force, the document, "Global Initiative for the Elimination of Avoidable Blindness", was developed and adopted. (wikipedia.org)
  • The document sets out priorities and strategies to eliminate avoidable blindness. (wikipedia.org)
  • The Task Force was integrated within IAPB, becoming the "Task Force of IAPB", and a Memorandum of Understanding to implement the "Global Initiative to Eliminate Avoidable Blindness" was signed between IAPB and WHO. (wikipedia.org)
  • In May 2003, the 56th World Health Assembly of Ministers adopted a "Resolution on Elimination of Avoidable Blindness", which calls on all member states to prepare VISION 2020 plans by 2005. (wikipedia.org)
  • After lengthy and traumatic quarantine in an asylum, the group bands together in a family-like unit to survive by their wits and by the unexplained good fortune that the doctor's wife has escaped the blindness. (wikipedia.org)
  • Other eye diseases, such as cataracts (say: KAH-tuh-rakts), can cause vision problems or blindness, but they usually affect older people. (kidshealth.org)
  • Special lenses may help people with red-green color blindness when under bright conditions. (wikipedia.org)
  • Because schlep blindness prevented people from even considering the idea of fixing payments. (paulgraham.com)
  • Many people who dread blindness imagine having no perception of light in each eye. (springer.com)
  • It is a misleading term because people with color blindness are not blind. (encyclopedia.com)
  • While blind and visually impaired people had contributed to the body of common literature for centuries, one notable example being the author of Paradise Lost, John Milton, the creation of autobiographical materials, or materials specific to blindness, is relatively new. (wikipedia.org)
  • Though partial color blindness is considered only a mild disability and is controversial whether it is even a disorder, it is a condition that affects many people, particularly males. (wikipedia.org)
  • This is a list of people with color blindness, meaning they have a decreased ability to see color or differences in color. (wikipedia.org)
  • SPECIAL REPORT / Diseases that can cause blindness, such as diabetes-related complications, can be prevented with better healthcare. (euractiv.com)
  • These diseases, which affect more than 10 million Americans and millions more throughout the world, often lead to severe vision loss or complete blindness. (wikipedia.org)
  • Non-profit organization undertaking community-based work with blindness prevention organisations in Asia, Africa and the Pacific. (dmoztools.net)
  • In 1998, Saramago received the Nobel Prize for Literature, and Blindness was one of his works noted by the committee when announcing the award. (wikipedia.org)
  • In addition to autism and AS, ToM and mind-blindness research has recently been extended to other disorders such as schizophrenia, dementia, bipolar disorders, antisocial personality disorders as well as normal aging. (wikipedia.org)
  • Lesion studies show that when lesions are imposed to the medial frontal lobe, performance on mentalization tasks is reduced, similar to typical mind-blindness cases. (wikipedia.org)