AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesDisciplines and OccupationsAnthropology, Education, Sociology and Social PhenomenaHumanitiesInformation ScienceNamed GroupsHealth CareGeographicals
BlindnessNight BlindnessBlindness, CorticalVision, LowOnchocerciasis, OcularCataractVisually Impaired PersonsXerophthalmiaTrachomaEye Diseases, HereditaryVisual AcuityEye DiseasesVision DisordersGlaucomaCataract ExtractionRefractive ErrorsVitamin A DeficiencyEye InjuriesElectroretinographyMacular DegenerationCorneal DiseasesNepalPrevalenceColor Vision DefectsOnchocerca volvulusOptic AtrophyRetinaRetinal DiseasesOphthalmologyCorneal OpacityDiabetic RetinopathyRetinal DegenerationRetinitis PigmentosaGenetic Diseases, X-LinkedIndiaOnchocerciasisAmaurosis FugaxEye ProteinsKeratitisAge DistributionDark AdaptationGlaucoma, Open-AngleAphakiaLeber Congenital AmaurosisRetinopathy of PrematurityNigeriaRetinal Rod Photoreceptor CellsTrichiasisRural HealthEducation, SpecialVision, Ocularcis-trans-IsomerasesCartoons as TopicSex DistributionEducation of Visually DisabledPhotoreceptor Cells, VertebratePedigreeVision ScreeningMyopiaUveitisEyeglassesRhodopsinOmanFundus OculiVitamin ASensory AidsTongaVision TestsOnchocercaWorld HealthHealth SurveysField Dependence-IndependenceSudanColor Perception Tests
Diagnosis of cortical blindnessSeizuresRetinopathy of prematurTransientCongenitalNeurological visual impairmentBilateralInattentional blindnessCerebral palsySymptomsChildhood blindnessLesionsHemianopiaCortexDiagnosticAdultsInfantsInvolvementPhenomenon knownSyndromeRecoverVisionOccursStrokePrognosisCasesOcularFindingsOxygenPatientsAbnormalChildrenAbsenceStrategiesRareDamageTreatmentCaseRecoveryPeopleDevelopmentTermFunctionsReal
Diagnosis of cortical blindness6
  • According to the boy's mother, symptoms began with headaches, vomiting, fatigue, visual loss, and fever (40.0 °C). Clinical investigations led to a diagnosis of cortical blindness and encephalitis due to NCC. (researchsquare.com)
  • A thorough neurological examination with CSF analysis and imaging studies was conducted, and a diagnosis of cortical blindness and encephalitis due to NCC was made. (researchsquare.com)
  • The diagnosis of cortical blindness is initially a clinical diagnosis made by the presence of roving nystagmus. (karenpapemd.com)
  • The diagnosis of cortical blindness, along with its diagnostic code, is put on the baby's chart. (karenpapemd.com)
  • At the parent meeting, I saw several children who have carried the diagnosis of cortical blindness that were perfectly capable of fixing and following, to some extent, objects put within their line of sight. (karenpapemd.com)
  • Once you get an ophthalmologist to agree that the child has some sight, then parents should get the diagnosis of cortical blindness off their child's medical record and the more correct CVI diagnosis added. (karenpapemd.com)
Seizures2
  • The adult male donor had a history of cerebral palsy, seizures, and blindness. (cdc.gov)
  • 6 Despite its name, the disease is not restricted to cerebral white matter as the presentation may be with cortical deficits such as dysphasia, cortical blindness, or seizures. (bmj.com)
Retinopathy of prematur1
Transient3
  • Cortical blindness can be acquired or congenital, and may also be transient in certain instances. (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)
  • 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)
Congenital2
  • Congenital cortical blindness is most often caused by perinatal ischemic stroke, encephalitis, and meningitis. (wikipedia.org)
  • The form of face blindness is congenital: those who inherit a genetic mutation are born with an impaired ability to recognize faces. (scienceblogs.com)
Neurological visual impairment2
  • 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)
  • One of those injuries may be damage to the visual cortex, resulting in neurological visual impairment (NVI) or cortical blindness. (birthinjuryinfo.org)
Bilateral5
  • 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)
  • In addition, there have been reports of very rare cases of bilateral cortical blindness caused by helminths in children. (researchsquare.com)
  • We report a case of a 14-year-old African boy from Nigeria with bilateral cortical blindness caused by NCC due to Taenia solium . (researchsquare.com)
  • The term "cortical" is misleading because the visual impairment is due to abnormality of bilateral, post-chiahydrocephalus shunt failure, se smal visual pathways, including damage to cortical (gray matter), subcortical (white matter), or both. (childrenshospital.org)
  • 3 = Bilateral hemianopia (blind including cortical blindness) stimulation is performed at this point. (medscape.com)
Inattentional blindness2
  • These effects of load on neural response explain inattentional blindness. (medicalxpress.com)
  • But it also leads to inattentional blindness, where we can't perceive unattended stimuli that are not part of the task even in cases when it's quite important to perceive them for example, an animal on the road while we're driving. (medicalxpress.com)
Cerebral palsy1
  • These severe disabilities encompass spastic dystonic cerebral palsy and severe learning impairment, possibly with cortical visual loss or hearing impairment. (bmj.com)
Symptoms4
  • Symptoms of cortical blindness can be easily confused with symptoms associated with other types of birth injuries and traumas. (birthinjuryinfo.org)
  • What are the symptoms of cortical visual impairment? (childrenshospital.org)
  • Summary: We report three patients in whom neurologic symptoms and cortical laminar necrosis developed after immunosuppressive treatment (cyclosporin A and FK 506) and polychemotherapy (vincristine and methotrexate). (ajnr.org)
  • An occipital lobe stroke, however, may not cause these symptoms and instead may cause visual disturbances like blurry vision, hallucinations, or even blindness. (flintrehab.com)
Childhood blindness2
  • For these reasons, the first FDA-approved gene therapy treats a form of childhood blindness caused by a mutation in a gene discovered at NEI. (nih.gov)
  • Less than 20% of children with CVI (Cortical/Cerebral Visual Impairment) have been diagnosed with this leading cause of childhood blindness, according to new research conducted by the CVI Center at Perkins School for the Blind with analysis from McKinsey & Company. (perkins.org)
Lesions2
  • Follow-up studies showed cortical hyperintense lesions on T1-weighted MR images, consistent with cortical laminar necrosis. (ajnr.org)
  • Cerebral akinetopsia is a syndrome in which a patient loses specifically the ability to perceive visual motion following cortical lesions outside the striate cortex. (erowid.org)
Hemianopia1
Cortex7
  • 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)
  • However, very few children will regain full visual capabilities if they suffer a birth injury to the visual cortex that results in cortical blindness. (birthinjuryinfo.org)
  • However, the adult visual cortex represents approximately 40% of our cortical real estate. (karenpapemd.com)
  • Plasticity in the visual cortex of blind individuals provides a rare window into the mechanisms of cortical specialization. (jneurosci.org)
  • All existing data on visual cortex plasticity in blindness come from adults. (jneurosci.org)
  • Some affected individuals have blindness due to impairment of the area of the brain responsible for processing vision, called the occipital cortex (cortical blindness). (medlineplus.gov)
  • Brain damage, such as cortical blindness, is an uncommon but known complication when the cerebral cortex experiences acute hypoxic damage. (nolan-law.com)
Diagnostic4
  • 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)
  • 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)
  • It is now widely accepted that "cortical blindness" is not an appropriate diagnostic term for children with early, acquired visual impairment due to non-ocular causes. (childrenshospital.org)
  • This portable system based on AI and virtual reality can improve diagnostic testing for glaucoma, a leading cause of blindness in African Americans and Hispanics. (nih.gov)
Adults1
Infants1
Involvement2
  • Initial neuroradiologic studies showed cortical and white matter involvement. (ajnr.org)
  • Cortical involvement may also be evident on MRI and in the neuropathological findings. (bmj.com)
Phenomenon known1
  • 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)
Syndrome2
  • 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 (Riddoch syndrome). (wikipedia.org)
  • Anton syndrome is characterized by the psychic denial of true, organic cortical blindness. (umassmed.edu)
Recover1
  • In most cases, the complete loss of vision is not permanent and the patient may recover some of their vision (cortical visual impairment). (wikipedia.org)
Vision1
Occurs1
  • More than a decade ago, Lavie, a professor of Psychology and Neuroscience at UCL, originated load theory , explaining why inattention blindness only occurs during more demanding high-load tasks. (medicalxpress.com)
Stroke1
Prognosis2
  • citation needed] The prognosis of a patient with acquired cortical blindness depends largely on the original cause of the blindness. (wikipedia.org)
  • We reviewed the published literature on rehabilitation outcomes in patients with cortical blindness (CB) and highlighted the characteristic features and prognosis of CB due to cardiac arrest. (towerhealth.org)
Cases2
  • Fundoscopy should be normal in cases of cortical blindness. (wikipedia.org)
  • Vincristine-induced neurotoxicity is also well documented, but only a few cases of cortical blindness have been reported (4, 5) . (ajnr.org)
Ocular3
  • 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)
  • Patients with ocular trauma, bandages, pre-existing blindness, or other disorder of visual acuity or fields should be tested with reflexive movements, and a choice made by the investigator. (nih.gov)
  • Patients with ocular trauma, bandages, pre-existing blindness or other 2 = Forced deviation, or total gaze paresis not overcome by the disorder of visual acuity or fields should be tested with reflexive oculocephalic maneuver. (medscape.com)
Findings1
  • MR findings of cortical blindness following cerebral angiography: is this entity related to posterior reversible leukoencephalopathy? (umassmed.edu)
Oxygen2
  • The most common cause of cortical blindness is ischemia (oxygen deprivation) to the occipital lobes caused by blockage to one or both of the posterior cerebral arteries. (wikipedia.org)
  • We can answer your questions , point you toward helpful resources and pursue your legal rights against a doctor, nurse, midwife or other health care professional who contribute to your child experiencing cortical blindness because of a lack of oxygen during birth. (birthinjuryinfo.org)
Patients2
  • 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)
  • In this article, we report three patients treated with immunosuppressive drugs and chemotherapy (vincristine, methotrexate) in whom cortical laminar necrosis developed. (ajnr.org)
Abnormal1
  • Cortical Visual Impairment (CVI) is diagnosed when children show abnormal visual responses that aren't caused by the eyes themselves. (childrenshospital.org)
Children1
  • Most children retain some ability to see, making cortical "blindness" a bit of a misnomer. (birthinjuryinfo.org)
Absence2
  • L'incidence du thrombus intraventriculaire gauche est relativement faible en absence d'une cardiopathie hypokinétique sévère avec altération de la fraction d'éjection. (bvsalud.org)
  • Nous rapportant le cas d'un homme de 37 ans infecté par le SARS-CoV-2 présentant un thrombus intraventriculaire gauche en absence de cardiopathie connue. (bvsalud.org)
Strategies1
  • This fact underscores the metamodal theory of sensory cortical function and can be used to devise effective strategies to train the blind to compensate their loss through better use of the remaining sensory modalities. (bvsalud.org)
Rare1
  • Studies of blindness provide a rare glimpse into how nature and nurture shape human brain development. (jneurosci.org)
Damage1
  • Also known as face blindness, prosopagnosia is associated with damage to specific parts of the temporal lobes. (scienceblogs.com)
Treatment1
Case1
  • This might be the case if many years of blindness are required to revamp the visual system for non-visual functions. (jneurosci.org)
Recovery1
People2
  • This graph shows the total number of publications written about "Blindness, Cortical" by people in this website by year, and whether "Blindness, Cortical" was a major or minor topic of these publications. (umassmed.edu)
  • Below are the most recent publications written about "Blindness, Cortical" by people in Profiles. (umassmed.edu)
Development1
  • The development of cortical blindness into the milder cortical visual impairment is a more likely outcome. (wikipedia.org)
Term1
  • The correct term is cerebral or cortical visual impairment. (karenpapemd.com)
Functions1
  • The same cortical tissue can take on visual perception and language functions. (jneurosci.org)
Real1
  • Keep in mind that cortical blindness is a condition of the brain - the real indicator that your child is affected is a lack of reaction to visual stimulus or an inability to fix his or her eyes on an object to follow that object. (birthinjuryinfo.org)