Visual Impairment: Causes & Reasons

Possible Causes for Visual Impairment

impairment severe visual impairment blindness. [web.archive.org]

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]

Macular Degeneration

Age-related macular degeneration is a leading cause of visual impairment and severe vision loss. [ncbi.nlm.nih.gov]

impaired patients have so they can remain independent and active and enjoy a higher quality of life. [eschenbach.com]

impairment in populations worldwide. [ncbi.nlm.nih.gov]

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]

Neuromyelitis Optica Spectrum Disorder with Anti-AQP4 Antibodies

Approximately 50% of patients with NMOSD have permanent visual impairment and paralysis caused by NMOSD attacks. [news-medical.net]

Vision problems with MS usually affect one eye at a time and result in mild visual impairment while NMOSD may affect both eyes at the same time and may cause severe visual [uhhospitals.org]

Impairment [news-medical.net]

Strabismus

At this point, the visual impairment will be termed "amblyopia," which is reduced visual acuity in the turned eye. [familyconnect.org]

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

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]

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

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

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]

In patients who have severe visual impairment or progressive visual deterioration despite medical management, surgical or interventional treatment may be considered. [dovepress.com]

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]

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]

impairment owing to corneal clouding and retinal dystrophy. [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]

Autosomal recessive achromatopsia is a rare disorder characterized by total absent color vision, nystagmus, photophobia, and visual impairment, frequently leading to 'legal [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

In most affected individuals, the disease manifests in form of progressive, unilateral visual impairment. [symptoma.com]

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]

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]

Case Report: The case is presented of a 28-year-old patient hospitalized due to visual impairment of the left eye, and whose hearing and neuropsychiatric disorders had appeared [aaem.pl]

Hyperopia

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

Study Selection: We selected randomized trials and controlled observational studies that directly evaluated screening for impaired visual acuity in preschool-aged children [ncbi.nlm.nih.gov]

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]

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]

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]

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]

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]

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

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

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

[…] normal limbs Skeletal abnormalities including ulnar deviation of the wrists, pectus carinatum, kyphosis, scoliosis Hypermobile joints and waddling gait with frequent falls Visual [centogene.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]

We want to emphasize that ocular involvement in MWS should be carefully assessed, since it can lead to visual impairment. [ard.bmj.com]

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]

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]

Consequences of secondary amyloidosis, deafness, visual impairment, intellectual disability or existing developmental delay can or do persist, remaining stable or showing [dermnetnz.org]

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

Retinoblastoma

impairments. [afb.org]

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]

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

Athetoid Cerebral Palsy

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]

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

Meanwhile, severe visual impairment was slightly less common, occurring in 19% of cases, and severe hearing impairment in 6%. [safebirthproject.com]

Brain Neoplasm

impairment. [uclahealth.org]

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 [uclahealth.org]

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]

Cinchonism

Attempted suicide by intake of a large dose of quinine has caused irreversible tunnel vision and very severe visual impairment.[2] Patients treated with quinine may also suffer [en.wikipedia.org]

[…] has to be carefully evaluated to weigh the benefits against potential risks, such as cinchonism (nausea, vomiting, tinnitus, and deafness),[11] thrombocytopenia,[12] and visual [the-medical-dictionary.com]

impairment.[13] Magnesium plays a central role in metabolism and muscle function by participating in many of the biochemical reactions that take place in the body, particularly [the-medical-dictionary.com]

Astigmatism

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]

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]

Retinal Detachment

It is a very serious eye condition and can cause severe visual impairment if it is not treated promptly. [patient.info]

Proliferative diabetic retinopathy is a major cause of visual impairment in working-age adults worldwide. [ncbi.nlm.nih.gov]

However, for some, macular detachment will lead to severe visual impairment in the affected eye. [patient.info]

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]