Visual Impairment: Causes & Reasons

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Possible Causes for Visual Impairment

Cataract

If left untreated, however, they may eventually cause severe visual impairment in the affected eye. [theconversation.com]

The clouding causes distortion of light, as it passes through the lens, resulting in visual impairment and glare. [amboss.com]

The new WHO Action Plan mandates that national governments collect data on cataract indicators of blindness and visual impairment. [iapb.org]

Glaucoma

Abstract Diabetic retinopathy (DR) and glaucoma are emerging causes of blindness and visual impairment in India and the world. [ncbi.nlm.nih.gov]

The disease is responsible for one in ten cases of visual impairment. [telegraph.co.uk]

Enhancing public health surveillance of visual impairment and eye health in the United States. [cdc.gov]

Strabismus

In this dataset, for individuals with strabismus and a coexisting visual impairment, it has been the visual impairment that is recorded in the single field addressing vision [onlinelibrary.wiley.com]

Screening for visual impairment in children ages 1 to 5: recommendation statement. January 2011. [bestpractice.bmj.com]

‘Visual impairment caused by refractive error, amblyopia, strabismus, and astigmatism is a common condition among young children, affecting 5 to 10 percent of all preschoolers [oxforddictionaries.com]

Neuronal Ceroid Lipofuscinosis

Rapidly progressing visual loss resulting in severe visual impairment within one to two years is often the first clinical sign. [ncbi.nlm.nih.gov]

Visual impairment typically appears at age four to six years and rapidly progresses to light /dark awareness only. [ncbi.nlm.nih.gov]

Other forms of NCL may present with behavior changes, epilepsy, visual impairment, or slowing of developmental progress and then loss of skills. [ncbi.nlm.nih.gov]

Idiopathic Intracranial Hypertension

It can lead to visual impairment but prompt diagnosis and treatment in most of the cases will prevent potentially permanent visual loss. [ncbi.nlm.nih.gov]

Visual impairment is a serious complication that may not be recognized by the patients. [dovepress.com]

BACKGROUND: Idiopathic intracranial hypertension (IIH) mostly affects young obese women and can lead to permanent visual impairment. [ncbi.nlm.nih.gov]

Mucolipidosis

Mucolipidosis IV (ML4) is a neurodegenerative condition that is characterised by significant psychomotor and cognitive development delay, visual impairment, and poor muscle [jnetics.org]

impairment. [symptoma.com]

Mucolipidosis type IV (MLIV) is a neurodevelopmental as well as neurodegenerative disorder with severe psychomotor developmental delay, progressive visual impairment, and [ncbi.nlm.nih.gov]

Myopia

Refractive error and visual impairment in urban children in southern China. Invest Ophthalmol Vis Sci 2004; 45 : 793–799. 10. [doi.org]

Myopia rates in the Visual Impairment Project generally decrease with age and use of myopic correction has increased in recent times. [ncbi.nlm.nih.gov]

Mechanical stretching and thinning of the choroids may lead to the development of irreversible degenerative changes in the eyeball and visual impairment. [web.archive.org]

Leber's Hereditary Optic Neuropathy

The findings of the present study suggested that the m.5587T>C mutation may be involved in the pathogenesis of visual impairment. [ncbi.nlm.nih.gov]

There are also links to Leber's-related sites and scientific papers, and useful information for visually impaired people living in the United Kingdom. [web.archive.org]

Therefore, idebenone is a valuable agent to treat visual impairment in adolescents and adults with LHON. [ncbi.nlm.nih.gov]

Achromatopsia

Light-absorbing glasses (absorption > 90%) can ameliorate this visual impairment to a certain extent but are sometimes not accepted by the patient since they are felt to disfigure [ncbi.nlm.nih.gov]

impairment, and markedly disparate color vision deficiencies between two affected cousins. [ncbi.nlm.nih.gov]

I got them at a visual impairment exhibition and for the first time I could go outside, see in the sunshine and visualise a colour. [rnib.org.uk]

Temporal Arteritis

Ocular involvement may cause visual impairment or even blindness. Called also cranial, granulomatous, or temporal arteritis and Horton arteritis, disease, or syndrome. [web.archive.org]

Recently, we encountered a 76-year-old Taiwanese patient who presented with right visual impairment and marked pale swelling of his right disc. [ncbi.nlm.nih.gov]

Symptoms include fever; fatigue; headache; visual impairment; pain in the jaw and tongue; and aggravation of pain by cold temperatures. [icd9data.com]

Hyperopia

Myopia Myopia is a common form of mild visual impairment, often called nearsightedness because people with myopia can focus well on near objects but faraway objects appear [isle.hanover.edu]

Structured Abstract Background: Impaired visual acuity is common in preschool-aged children. [web.archive.org]

Hyperopia Hyperopia is also a common form of mild visual impairment, often called farsightedness because people with hyperopia can focus well on faraway objects but near objects [isle.hanover.edu]

Craniopharyngioma

Clinical manifestations are related to increased intracranial pressure, visual impairment, and hypothalamic/pituitary deficiencies. [ncbi.nlm.nih.gov]

Clinicians need to be aware of this association, and should perform urgent MRI scanning in TS patients with headache, visual impairment or clinical/biochemical evidence of [ncbi.nlm.nih.gov]

Mucopolysaccharidosis Type 1

Ocular manifestations are common in the mucopolysaccharidoses and may result in significant visual impairment. [ncbi.nlm.nih.gov]

The severe visual impairment was attributed in one patient (patient 10H, Table 2 ) to cortical visual impairment, and to optic atrophy secondary to previous raised intracranial [nature.com]

impairment Impaired vision Loss of eyesight Poor vision [ more ] 0000505 Percent of people who have these symptoms is not available through HPO Aortic regurgitation 0001659 [rarediseases.info.nih.gov]

Susac Syndrome

At one-year follow-up, bilateral hearing loss, mild visual impairment, and mood changes were still apparent. [ncbi.nlm.nih.gov]

Abstract The Susac's syndrome is a rare disorder that was first described in 1979 and is characterized by a classic triad consisting in encephalopathy, visual impairment and [ncbi.nlm.nih.gov]

impairment. [synapse.koreamed.org]

Retrobulbar Neuritis

When this nerve is inflamed, the transmission of information is disturbed and visual impairment results. [chop.edu]

[…] function in patients with ON is usually assessed by visual acuity, and more sensitive measures of visual impairment, such as contrast sensitivity and low-contrast letter [neurologyindia.com]

The predominant complication of optic neuritis is visual impairment, and in the worst case, blindess. [clinicaladvisor.com]

Hypopyon Ulcer

On the other hand, the hypopyon will go away on its own without any treatment, however, if the underlying condition is not treated, it can result in glaucoma, visual impairment [actforlibraries.org]

Treatment Prompt treatment is essential for all forms of corneal ulcer to prevent complications and permanent visual impairment. [healthcentral.com]

Presbyopia

BACKGROUND/AIMS: New surgical techniques have recently been developed in order to compensate for visual impairment and to improve visual comfort for patients with presbyopia [ncbi.nlm.nih.gov]

Four hundred individuals with distance visual impairment were excluded from the analysis. [ncbi.nlm.nih.gov]

In multivariable models, younger age, male sex, Malay and Indian ethnicities, presenting distance visual impairment (any eye), and lower education and income levels were associated [ncbi.nlm.nih.gov]

Mucopolysaccharidosis Type 4A

In general, MPS-IVA patients show normal intelligence, but visual impairment and hearing loss are regularly reported. [symptoma.com]

Involvement of other organ systems can lead to respiratory complications, valvular heart disease, hearing impairment, visual impairment from corneal clouding, dental abnormalities [centogene.com]

Additionally, MPS-IVA patients may present with visual and hearing impairment, respiratory distress and heart disease. [symptoma.com]

Cryopyrin-Associated Periodic Syndrome

We underscore that ocular involvement in MuckleWells syndrome should be carefully assessed, since it can lead to visual impairment. [ncbi.nlm.nih.gov]

A total of 36 of the patients were diagnosed with NOMID, which is characterized by fevers, rash, headache, aseptic meningitis, hearing loss, visual impairment, and cognitive [medpagetoday.com]

Visual and hearing impairment are frequently reported. Contrary to FCU and MWS, remission and recurrence is not typical for CINCA. [symptoma.com]

Retinoblastoma

impairments. [afb.org]

They include parents of visually impaired children, visually impaired children themselves, Community Paediatricians, Ophthalmologists, Educationalists and Psychologists. [ssc.education.ed.ac.uk]

RB is most often painless and children rarely complain of visual impairment despite its rapid progression towards loss of vision in the affected eye. [orpha.net]

Thallium Poisoning

To determine the cause of visual impairment and to document the late eye disturbances in a case of thallium poisoning. [ncbi.nlm.nih.gov]

Our patient had severe visual impairment and prolonged P100 latency of visual evoked potential due to retrobulbar neuritis. [pmj.bmj.com]

Abstract Purpose: To determine the cause of visual impairment and to document the late eye disturbances in a case of thallium poisoning. [link.springer.com]

Alacrima - Achalasia - Mental Retardation

impairment, autism and intellectual disability. 61 Chokron S...Dutton GN 32298709 2020 32 Int22h1/Int22h2-mediated Xq28 duplication syndrome: de novo duplications, prenatal [malacards.org]

Impairment and Intellectual Disability cerebrocostomandibular syndrome Cerebrofaciothoracic Dysplasia Cerebrooculofacioskeletal Syndrome 2 Cerebrooculofacioskeletal Syndrome [rgd.mcw.edu]

Haynes D...Lacassie Y 32324310 2020 30 Seizures and Epilepsy in Autism Spectrum Disorder. 61 Besag FMC...Vasey MJ 32471597 2020 31 The inter-relationships between cerebral visual [malacards.org]

CINCA Syndrome

impairment due to optic atrophy Visual field – retinal blind spot enlargement CT scan can be normal show mild cerebral atrophy – mild enlargement of ventricles and subdural [dermnetnz.org]

impairment including blindness retinal vasculitis – rare Physical appearance Prominent forehead Flattening of the nasal bridge (saddleback nose) Large head (macrocephaly) [dermnetnz.org]

However, it is progressive neurologic, auditory, and visual impairment that determines long‐term disability in this disorder (5). [onlinelibrary.wiley.com]

Astigmatism

PURPOSE: Post-operative corneal astigmatism following cataract surgery can leave the patient with visual impairment. [ncbi.nlm.nih.gov]

PURPOSE: Worldwide, the most frequent cause of visual impairment is uncorrected refractive error. [ncbi.nlm.nih.gov]

Picture of Astigmatism Astigmatism is a common form of visual impairment in which an image is blurred due to an irregularity in the curvature of the front surface of the eye [medicinenet.com]

Athetoid Cerebral Palsy

impairment, swallowing difficulties, speech impairment (dysarthria), and hearing loss. [nmihi.com]

impairment due to a dyskinetic eye movement disorder in children with dyskinetic cerebral palsy. ( 12033724 ) Roulet-Perez E....Deonna T. 2002 47 Visual impairment due to [malacards.org]

Other presentation included speech difficulties in 37% of cases, visual impairments, convulsions, and hearing loss which all occurred in few patients. [symptoma.com]

Limbal Stem Cell Deficiency

CONCLUSIONS: Heterozygous p63 mutations cause the EEC syndrome and result in visual impairment owing to progressive LSCD. [ncbi.nlm.nih.gov]

Limbal Stem Cell Deficiency (LSCD) can lead to corneal opacity and vascularization, with consequent visual impairment or blindness. [ncbi.nlm.nih.gov]

CONCLUSIONS: LSCD seems to be one of the complications of long-standing VKC, contributing to severe visual impairment in young individuals. [ncbi.nlm.nih.gov]

Retinal Artery Occlusion

RESULTS: A 65-year-old woman developed dramatic visual impairment in her left eye secondary to BRAO after left internal carotid artery endovascular reconstruction with flow [ncbi.nlm.nih.gov]

An abrupt blockage of blood flow (ischemia) halts proper retinal functioning, which results in visual impairment. [midatlanticretina.com]

On the positive side doctors are looking into laser surgery and how it may help rectify retinal damage and fix the visual impairment caused by the occlusion. [kanataoptometry.ca]

Brain Neoplasm

impairment. [neurosurgery.ucla.edu]

visual defects, speech impairment, and seizures. [aapmr.org]

[…] is situated) Common Symptoms - Loss of smell (anosmia), subtle personality changes, mild difficulty with memory, euphoria, diminished concentration, urinary incontinence, visual [neurosurgery.ucla.edu]

Mucopolysaccharidosis Type 3

Impaired Wide range معلومات المراجع العنوان Fulton Special Education Digest: Selected Resources for Teachers, Parents and Carers المؤلفون Ann Worthington, Philippa Russell [books.google.com]

Perhaps optic canal narrowing is underdiagnosed in Hunter syndrome because intellectually impaired children may not be able to describe visual loss. [ajnr.org]

Without the proper enzymatic degradation of the mucopolysaccharides, clinical symptoms, such as auditory and visual defects, cardiovascular pathologies, hepatosplenomegaly [emedicine.medscape.com]

Mucopolysaccharidosis Type 6

Although mental development proceeds normally in Maroteaux-Lamy patients, the progression of physical and visual impairments ultimately impedes psychomotor abilities. [themedicalbiochemistrypage.org]

The main cause of visual impairment in these patients is, as noted above, the deposition of glycosaminoglycans at the cornea and subsequent hypo-transparency[7]. [eyewiki.aao.org]

It is characterized by normal intelligence and stature; however, affected individuals do experience joint involvement, visual impairment, and obstructive airway disease. [neurology.testcatalog.org]