DiseasesAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesNamed Groups
BlindnessOnchocerciasis, OcularVision, LowCataractVisual AcuityNight BlindnessBlindness, CorticalVisually Impaired PersonsXerophthalmiaTrachomaEye Diseases, HereditaryEye Diseases
CataractCortical blindnessUnilateral or bilateral blindnessElimination of avoidable blindnessLegal blindnessCongenitalRetinalPrevalenceMonocularAvoidableTotal BlindnessPreventable blindnessSurvey of blindnessVisualGlaucomaPreventionRetinopathyCornealMultiple SclerosisSevereAbnormalitiesUlcerationAtaxiaNystagmusVisionPredominantlySymptomsTreatableHearing LossDiseaseSyndromeOrbitalProgrammesAdultChildrenPatientsBlindConditionAnomaliesCasesPeoplePartialCommonMeSH
Cataract6
  • To assess blindness prevalence and that caused specifically by cataract in rural southern China. (nih.gov)
  • Multivariable logistic regression indicated that cataract, age-related macular degeneration and diabetic retinopathy were significantly associated with low vision and blindness after adjustment for age and sex. (bmj.com)
  • This nationally representative population-based survey indicates that more than 1 in 10 Bangleashi adults aged ≥40 years have low vision or blindness, with cataract being the single most attributing factor. (bmj.com)
  • Cataract is the main cause of blindness in the Region. (who.int)
  • Blindness due to cataract or to total opacification of the cornea was seen in 14 cases. (vin.com)
  • The main causes of bilateral blindness included cataract, glaucoma and retinal disorders. (who.int)
Cortical blindness5
  • Cortical blindness-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)
  • 3 = Bilateral hemianopia (blind including cortical blindness) stimulation is performed at this point. (medscape.com)
  • Anton syndrome is characterized by the psychic denial of true, organic cortical blindness. (umassmed.edu)
  • MR findings of cortical blindness following cerebral angiography: is this entity related to posterior reversible leukoencephalopathy? (umassmed.edu)
  • Approximately 40-50% of patients with GCA have ophthalmologic complications, including visual loss secondary to A-AION, central retinal artery occlusion, homonymous hemianopsia or cortical blindness (uni- or bilateral occipital infarction) [ 6 ]. (intechopen.com)
Unilateral or bilateral blindness2
  • and survival without severe or moderate neuromotor or sensory disabilities (cerebral palsy with Gross Motor Function Classification System levels 2-5, unilateral or bilateral blindness or deafness). (bmj.com)
  • Birds with lymphomas may have no clinical signs or may present with depression, weight loss, pallor, anorexia, diarrhea, torticollis, and/or unilateral or bilateral blindness, with or without 'gray eye' which is typified by a gray discolouration of the iris and an irregular pupil. (uoguelph.ca)
Elimination of avoidable blindness2
  • The objective of the five-year project, 2014-2018, was to contribute to the elimination of avoidable blindness in the area. (cehjournal.org)
  • Initiative for the Elimination of Avoidable Blindness, also known as "Vision 2020: The Right to Sight", launched in partnership with the International Agency for the Prevention of Blindness, is an opportunity and appropriate response to the challenges posed by blindness. (who.int)
Legal blindness1
Congenital4
  • Congenital blindness leads to large-scale functional and structural reorganization in the occipital cortex, but relatively little is known about the neurochemical changes underlying this cross-modal plasticity. (ox.ac.uk)
  • Although bilateral ONA often occurs in association with severe congenital anomalies of the brain, nonsyndromic sporadic forms with bilateral ONA have been described. (molvis.org)
  • Optic nerve aplasia (ONA, OMIM #165550 ) is a very rare congenital anomaly that can be unilateral or bilateral. (molvis.org)
  • Congenital face blindness was first described in 1977, but it is only recently that researchers have discovered how common this condition is. (neurosciencenews.com)
Retinal1
  • The most common causes of bilateral low vision included refractive errors, keratoconus and retinal disorders. (who.int)
Prevalence9
  • Differences in blindness prevalence associated with age, gender, and education were explored using logistic regression. (nih.gov)
  • RESULTS The prevalence of blindness (visual acuity in the better eye less than 3/60) was 2.2%, and visual impairment 3.0% (6/24 to 3/60 in the better eye). (bmj.com)
  • 2 No study of the prevalence of blindness in the republic has yet been published. (bmj.com)
  • Data on the prevalence and causes of blindness will facilitate a needs assessment and future monitoring of the impact of eye care services. (bmj.com)
  • A sample size of 6024 was calculated beforehand based on an expected prevalence of blindness of 3%, a desired precision of 0.6% with a confidence level of 95%, and a design effect of 2. (bmj.com)
  • Objective The objective of this study was to determine the prevalence of blindness and its determinants in Bangladeshi adult population. (bmj.com)
  • The age-standardised prevalence, after best correction, of blindness and low vision was 1.0% (95% CI 0.5% to 1.4%) and 12.1% (95% CI 10.5% to 13.8%), respectively. (bmj.com)
  • PURPOSE: To assess the prevalence and risk factors of blindness among patients newly diagnosed with primary angle closure glaucoma (PACG) in the United States (US). (bvsalud.org)
  • RESULTS: Among 43,901 eligible patients, overall prevalence of any and bilateral blindness were 11.5% and 1.8%, respectively. (bvsalud.org)
Monocular3
  • Our laboratory studies the conditions which cause monocular or bilateral blindness in infants and children. (ski.org)
  • My research involves investigation of conditions which cause monocular or bilateral blindness in infants and children. (ski.org)
  • Injury is the commonest cause of monocular blindness. (cehjournal.org)
Avoidable3
  • Eye care service delivery in the Sundarbans of Bengal is an inspiring story in which concerted efforts involving training and participation of local resources led to a significant reduction of avoidable blindness. (cehjournal.org)
  • Vision 2020: The Right to Sight" is a global initiative that aims to eliminate avoidable blindness by the year 2020. (who.int)
  • The present strategy proposes specific interventions as part of the Vision 2020 Initiative for preventing and eliminating avoidable blindness in the African Region. (who.int)
Total Blindness1
Preventable blindness1
Survey of blindness1
  • AIMS A population based survey of blindness and visual impairment was conducted in the district of Bossangoa, Central African Republic. (bmj.com)
Visual14
  • If a person claims he has bilateral visual impairment, the following tests can be done to see if he is lying. (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)
  • Although visual motion blindness was predominantly observed in the contralateral visual field, stimulation of hMST also affected the ipsilateral hemifield. (jneurosci.org)
  • The aim of the study was to evaluate changes in the central visual pathways during the early and advanced stages of bilateral normal-tension glaucoma (NTG). (mdpi.com)
  • 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)
  • If there is unilateral ______ blindness or enucleation, visual fields in the remaining eye are scored. (medscape.com)
  • Together we address problems of blindness and visual impairment, particularly problems faced by our target populaiton that may be amenable to technological solutions. (ski.org)
  • The research includes basic and clinical studies of retinopathy of prematurity and cortical visual impairment, the 2 leading causes of blindness in children in the United States. (ski.org)
  • In fact, activity in the "visual word form area" was completely normal in those with face blindness, although this is situated right next to where the researchers found differences when participants looked at faces. (neurosciencenews.com)
  • As a part of the project a baseline population based survey was conducted to assess the magnitude of blindness and visual impairment. (cehjournal.org)
  • Visual impairment refers to low vision and blindness which correspond to partial or total loss of sight as measured by a standard scale.1 Blindness is preventable or treatable in 75% of cases. (who.int)
  • Founded in 1951, MAB's mission statement explicitly focuses on blindness prevention and empowering those with visual impairment through services and opportunities that include them in society. (borgenproject.org)
  • Total loss of vision in all or part of the visual field due to bilateral OCCIPITAL LOBE (i.e. (umassmed.edu)
  • Logistic regression models were developed to identify risk factors for any (one or both eyes) or bilateral (both eyes) blindness (visual acuity ≤ 20/200) at first diagnosis of PACG. (bvsalud.org)
Glaucoma2
  • Methods: The studied groups constituted patients with bilateral normal-tension glaucoma of the same stage ( n = 45) and age-matched healthy volunteers ( n = 17). (mdpi.com)
  • The commonest causes of bilat- nessisthoughttobeduetochildhood Eyeexaminationincludesslit-lamp, eralblindnesswerecataract(20.0%), blindness[ 2 ].Indevelopingcountries, fundoscopy,retinoscopyandtonom- glaucoma(17.8%),retinaldisorders thecausesofchildhoodblindnesshave etrywhenneeded.Afterestablishing (13.3%) and corneal nontraumatic notbeenwidelystudied.Toplaneffec- thediagnosis,medicinesorglassesare opacities(13.3%)(Table2).Foruni- tiveinterventionandpreventionpro- prescribedasappropriate. (who.int)
Prevention4
  • In spring 1994, a population based survey was undertaken in the north western district of Bossangoa as part of the development of a primary health care and prevention of blindness programme in the area. (bmj.com)
  • Agency for the Prevention of Blindness (IAPB), which is a broad coalition of nongovernmental organizations. (who.int)
  • 1 Though not a main cause of bilateral blindness in developing countries, effort should be made towards prevention. (cehjournal.org)
  • These results provide a basis for planning blindness prevention programmes in Yemen. (who.int)
Retinopathy1
  • She had suffered from bilateral eye disease (retinopathy), resulting in irreversible blindness 22 years ago. (bmj.com)
Corneal1
  • Over ten million patients suffer bilateral blindness due to corneal pathologies that cause the cornea to become opaque. (ibecbarcelona.eu)
Multiple Sclerosis1
Severe2
  • She developed a bacteremia with severe and extensive complications that included meningitis, mitral endocarditis and blindness due to bilateral endophthalmitis. (hindawi.com)
  • Two of them were the result of severe bilateral exophthalmia (commonly known as Popeye), which caused functional blindness and prevented the seahorses from feeding properly. (seahorse.com)
Abnormalities3
  • Brain magnetic resonance imaging (MRI) revealed bilateral optic neuritis, including the optic nerves, optic chiasm, and focal abnormalities in the subcortical white matter and cortical gray matter of both insula ( Fig. 1A and B ). There was no evidence of demyelination of the spinal cord. (annchildneurol.org)
  • This syndrome is characterized by night blindness, skeletal abnormalities (sloping shoulders, joint hyperextensibility, minor radiological anomalies) and characteristic facies (periorbital anomalies, malar flatness, retrognathia). (nih.gov)
  • Optic nerve aplasia (ONA, OMIM 165550) is a very rare unilateral or bilateral condition that leads to blindness in the affected eye, and is usually associated with other ocular abnormalities. (molvis.org)
Ulceration1
Ataxia2
  • Photographs of the cranial portion of the calvarium (A) and a cross section of the formalin-fixed brain at the level of the basal nuclei (B) of a cat that had a 4-day history of anorexia, bilateral blindness, progressive hind limb ataxia, and head tilt. (avma.org)
  • Patients may present with neurologic symptoms such as headaches, ataxia, and blindness. (medscape.com)
Nystagmus1
  • A paired box gene 6 ( PAX6 ) missense mutation, p.T391A, has been described in a patient with bilateral ONA, nystagmus, and normal anterior eye segments. (molvis.org)
Vision6
  • Blindness eye examination record protocol to be improved in 3 eyes due to concomitant for blindness and low vision [ 2 ]. (who.int)
  • Conclusions Low vision and blindness are common problems in those aged 40 years or older. (bmj.com)
  • The employee filed a workers' compensation claim against the self-insurer, BMC, seeking temporary total incapacity and medical benefits, commencing October 16, 1996, and continuing, on the ground that the flu shot caused her optic neuritis, vision loss, and blindness. (masscases.com)
  • Jake and his partner Ashleigh's son, Koa, was diagnosed with bilateral optic nerve hypoplasia when he was three months old and were told he has little to no vision. (visionaustralia.org)
  • When that's the case, the blindness is often temporary, and the affected fish's vision can be restored by maintaining it in total darkness for an extended period of time. (seahorse.com)
  • a la vision des couleurs et du champ n'a ete mise en evidence. (bvsalud.org)
Predominantly1
  • Cataracts were predominantly bilateral (34/36) and all stages of progression were observed (21/36 incipient, 7/36 immature, 4/36 mature and 4/36 hypermature). (vin.com)
Symptoms2
  • When Do Symptoms of Night blindness-skeletal anomalies-dysmorphism syndrome Begin? (nih.gov)
  • Symptoms of both are bilateral, intense papillary conjunctivitis with eyelid edema, chemosis, and mucopurulent discharge. (msdmanuals.com)
Treatable1
  • Blindness easily treatable. (who.int)
Hearing Loss2
  • The proposed study will enroll 96 children with mild to profound bilateral hearing loss. (centerwatch.com)
  • Permanent bilateral hearing loss is the permanent loss of hearing in both ears. (ideas.org.au)
Disease1
  • The impact of NTG can range from non-progressive, asymptomatic disease to bilateral blindness. (nih.gov)
Syndrome1
  • Nous rapportons deux cas de syndrome de Lyell: le premier ayant présenté une complication oculaire due à l'absence de la prise en charge oculaire en phase aigüe. (bvsalud.org)
Orbital2
  • Blindness after orbital decompression is extremely rare. (bvsalud.org)
  • Considering the devastating effect and rarity of this complication, this study presented two cases of blindness after orbital decompression. (bvsalud.org)
Programmes1
Adult1
  • A Danish-Norwegian team of researchers scanned 15 adult Danes with face blindness and 33 control subjects while they looked at pictures of faces, objects, buildings or words, and compared the two groups' brain activity. (neurosciencenews.com)
Children1
Patients1
  • CONCLUSIONS AND RELEVANCE: Blindness affects 1 out of 9 patients with newly diagnosed PACG in the IRIS® Registry. (bvsalud.org)
Blind1
  • However, people that are partially blind can see some things to varying degrees depending on the severity of their blindness. (ideas.org.au)
Condition6
  • H magnetic resonance spectroscopy was performed in 14 sighted subjects and 5 subjects with bilateral anophthalmia, a condition in which both eyes fail to develop. (ox.ac.uk)
  • It is a common condition and can lead to bilateral blindness. (nih.gov)
  • The genetic basis of this condition remains largely unknown, as no developmental genes other than paired box gene 6 ( PAX6 ) are known to be implicated in sporadic bilateral ONA. (molvis.org)
  • Brain activity in the fusiform face area on the right side of the brain showed no difference in those with face blindness compared to those without the condition. (neurosciencenews.com)
  • Much as people with dyslexia find it difficult to distinguish letters, people with face blindness are unable to "read" the special features that make faces unique, and which enable those without the condition to distinguish between people and recognize those we have met before. (neurosciencenews.com)
  • We know so little about face blindness, so just being able to pinpoint which areas in the brain are affected is a step towards hopefully one day helping those with the condition," she says. (neurosciencenews.com)
Anomalies1
Cases3
  • Apart from two sisters with putative nonsyndromic bilateral aplasia described by Newman and coworkers in 1864 [ 1 ], all nonsyndromic reported cases with bilateral ONA have been sporadic so far ( [ 1 ] and references therein). (molvis.org)
  • In a few other cases, the apparent blindness was associated with high intensity lighting. (seahorse.com)
  • In most of the cases I am familiar with, the blindness was caused by exposure to bright lighting under circumstances when there was no way available for the fish being displayed to seek shelter and get out of the light when they wanted. (seahorse.com)
People6
  • The research team expected that activity in a particular area on the right-hand side of the brain (the "fusiform face area") would be different in people with face blindness, as this is a key part of the brain network we use when looking at faces. (neurosciencenews.com)
  • It seems that we have been looking in the wrong half of the brain to identify what is different in people with face blindness. (neurosciencenews.com)
  • Life can be quite difficult for people with face blindness, many of whom are unable to recognise family members and friends. (neurosciencenews.com)
  • Some people with face blindness don't recognise you if you pop out the door and come back in again. (neurosciencenews.com)
  • 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)
Partial1
Common2
  • Tritan, common blue-yellow color blindness. (cdc.gov)
  • Atrophic changes in the macula, usually symmetric and bilateral, are common in individuals over age 50 years. (institut-vision.org)
MeSH1
  • Blindness, Cortical" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (umassmed.edu)