Visual Change: Causes & Reasons

Possible Causes for Visual Change

Concentration, attention, memory, visual perception and visuospatial construction are the most commonly described cognitive impairments. [rareguru.com]

[…] and strokes; headache; and dizziness. [1] [2] Reduced blood flow to the brain may cause reduced intellectual ability, memory loss, psychiatric disturbances, personality changes [rarediseases.info.nih.gov]

Reduced blood flow to the brain may cause reduced intellectual ability, memory loss, psychiatric disturbances, personality changes, and/or other neurological symptoms. [rareguru.com]

Disorders of Visual Cortex

Primary Visual Cortex Changes Throughout Life July 24, 2017 “More and more, we are realizing that critical periods aren’t quite as critical as we thought," says Simon Beshara [dana.org]

[…] thinning or changes in feedback from higher order visual areas. [frontiersin.org]

Therefore, there is a need to understand the visual and neural changes linked with amblyopia and other neurodevelopmental disorders. [hindawi.com]

Acute Zonal Occult Outer Retinopathy

Main OUTCOME MEASURES: Clinical presentation, best-corrected visual acuity (BCVA), fundus abnormalities, visual field defects, ffERG changes, and presence of antiretinal antibodies [experts.umich.edu]

MainOutcome Measures: Clinical presentation, best-corrected visual acuity (BCVA), fundus abnormalities, visual field defects, ffERG changes, and presence of antiretinal antibodies [ncbi.nlm.nih.gov]

Four women, aged 18 to 51, with acute focal loss of visual field or visual acuity, photopsia, and minimal funduscopic changes were studied with best-corrected visual acuity [ncbi.nlm.nih.gov]

Toxic Retinopathy

Field Test Hydroxychloroquine Retinopathy Typically Begins Inferior to the Fovea Hydroxychloroquine Retinopathy with Advanced Visual Field Changes but Minimal Fundus Changes [retinareference.com]

It is easy to miss association between chemotherapy and visual changes. [hoajonline.com]

The patients develop central visual changes weeks or months after the initial administration of the drug. [medtextfree.wordpress.com]

Secondary Optic Atrophy

The effects range from visual change to severe visual loss. [umkelloggeye.org]

Late visual loss may be divided into three major categories: Postoperative Tumor Recurrence Tumor recurrence is the most common cause of late visual deterioration; such change [pituitary.org]

Castells DD, Teitelbaum BA, Tresley DJ: Visual changes secondary to initiation of amiodarone: a case report and review involving ocular management in cardiac polypharmacy. [link.springer.com]

Chloroquine Retinopathy

The earliest signs of toxicity include bilateral paracentral visual field changes (best detected with a red test object) and a subtle granular depigmentation of the paracentral [en.wikipedia.org]

These findings, in addition to visual field defects and nonspecific colour vision changes, raised our suspicion of early HCQ retinopathy. [optometry.org.au]

visual disturbances resulting from retinal damage, and pruritus. [medical-dictionary.thefreedictionary.com]

Ocular Migraine

In this condition the visual changes happen at the back of the brain, not in the eye itself. [thedailymigraine.com]

They are suspected to be caused by harmless changes in circulation involving the visual part of the brain. [eyeconsultants.net]

The character of the headache may change, and the visual symptoms may change. [achenet.org]

Basilar Migraine

The aura stage is characterized by symptoms such as dizziness, double vision, a loss of balance, confusion, slurred speech, decreased hearing, visual changes and ringing in [essortment.com]

Symptoms experienced during the aura phase of basilar type migraine can include the following: Dizziness and vertigo Disorientation and confusion Double vision and other visual [whentaniatalks.com]

The neurological signs and symptoms in children with basilar artery migraine were vertigo (46%), visual changes (33%), diplopia (32%), paresthesia (24%), ataxia (14%), dysarthria [ci.nii.ac.jp]

Epithelial-Subepithelial Corneal Dystrophy

Visual acuity outcomes Four included studies reported change in corrected distance visual acuity (CDVA) from baseline to 12 months or a later final examination (Rossi 2015 [cochranelibrary.com]

Visual acuity outcomes Data for all three outcomes specified for CDVA were reported by Lombardo 2016; in addition, Rossi 2018 reported data for mean change in CDVA. [cochranelibrary.com]

The mean corrected distance visual acuity in the intervention groups was −0.13 (change from baseline), or 0.04 (final value), and no mean difference (95% CI −0.04 to 0.04) [cochranelibrary.com]

Hypervitaminosis B6

Symptoms include: Headache Abdominal pain Nausea or vomiting Lethargy Visual changes Impaired consciousness Other features suggestive of raised intracranial pressure, such [patient.info]

Cavernous Transformation of the Portal Vein

In addition to direct visualization of the dilated vessels, the resultant portal hypertension results in other frequent changes: see portal hypertension. [radiopaedia.org]

These changes lead to central liver hypertrophy and peripheral liver atrophy 8. [radiopaedia.org]

Hyperviscosity Syndrome

A classic triad includes visual changes, bleeding and neurological complaints. Most symptoms of hyperviscosity syndrome occur with levels >4 centipoises (normal 6. [link.springer.com]

A 44-year-old man presented with painless visual changes in his left eye. [ncbi.nlm.nih.gov]

History The clinical presentation of hyperviscosity syndrome consists principally of the triad of mucosal bleeding, visual changes, and neurologic symptoms. [2] Constitutional [emedicine.medscape.com]

Spastic Pseudosclerosis

Affected individuals may present with sleep disturbances, personality changes, ATAXIA; APHASIA, visual loss, weakness, muscle atrophy, MYOCLONUS, progressive dementia, and [hon.ch]

Signs and symptoms include sleep disturbances, personality changes, aphasia, ataxia, muscle atrophy and weakness, visual loss, and myoclonus. [fpnotebook.com]

Juvenile-Onset Primary Open-Angle Glaucoma Type 3

Mean change in best corrected visual acuity (BCVA) as measured by logMAR from baseline to one year after iridotomy. [cochranelibrary.com]

Proportion of participants with progressive visual field loss at one year. Mean change in IOP from baseline to one year. [cochranelibrary.com]

This damage occurs in a characteristic pattern with associated structural and functional changes, including visual field loss (Foster 2002). [cochranelibrary.com]

Primary Open-Angle Glaucoma Type 1N

[…] number of medications used to control IOP’, ‘gonioscopic findings’, and ‘mean change in visual acuity’. [cochranelibrary.com]

There were limited data on progression of visual field loss, change in ACD, or iridocorneal angle within these studies. [cochranelibrary.com]

We adopted the criteria in the included studies to define progression of visual field loss as measured using a validated method. (2) Mean change in IOP from baseline to one [cochranelibrary.com]

Cerebellar Medulloblastoma

Common symptoms in a child with medulloblastoma include: Headaches Vomiting Difficulty in walking or maintaining balance Clumsiness Worsening handwriting Visual changes How [texaschildrens.org]

Glaucomatocyclitic Crisis

Figure 4: (a) initial visual field change; (b) visual field progression 2 years later.[7] Laboratory studies If there is a strong suspicion for a uveitic glaucoma due to viral [eyewiki.aao.org]

[…] field changes appear.[21] One case series reported 8 patients with PSS who underwent trabeculectomy with mitomycin-C for uncontrolled IOPs and visual field defects. [eyewiki.aao.org]

In patients whom repeated attacks occur, permanent glaucomatous optic nerve damage with accompanying visual field changes may occur[7] and may be an indication for surgical [eyewiki.aao.org]

Myopia Type 9

Davies In Vivo Analysis of Ciliary Muscle Morphologic Changes with Accommodation ans Axial Ametropia, Investigative Ophthalmology & Visual Science, December 2010, Vol. 51, [mnopto.fr]

Age-Related Macular Degeneration

Visual changes can often be detected with an Amsler grid. Color photography and fluorescein angiography are done when findings suggest wet AMD. [msdmanuals.com]

Postural balance changes throughout life. Qiu et al. (2012) studied the somatosensory system during aging and the impact of age on postural stability. [frontiersin.org]

The first symptom is usually visual distortion, such as a central blind spot (scotoma) or curving of straight lines (metamorphopsia). [msdmanuals.com]

Visual Snow Syndrome

Read the full paper in Neurology titled: Ocular motor measures of visual processing changes in visual snow syndrome. [mivision.com.au]

Ocular motor measures of visual processing changes in visual snow syndrome. Neurology. [monash.edu]

Read the full paper in Neurology titled: Ocular motor measures of visual processing changes in visual snow syndrome. /Public Release. [miragenews.com]

Juvenile Ossifying Fibroma

changes Some lesions are found incidentally on routine radiographic exams Diagnosis Diagnosis dependent on clinical, radiologic and pathologic correlation Radiology description [pathologyoutlines.com]

[…] demonstrate rapid growth, causing local destruction and facial asymmetry Paranasal sinus or orbital bone involvement can cause nasal obstruction, proptosis, exophthalmia and visual [pathologyoutlines.com]

Normal-Tension Glaucoma

The authors assessed visual field change by retrospective case review of all patients treated for low-tension glaucoma by the Glaucoma Service, Wills Eye Hospital, for at [ncbi.nlm.nih.gov]

visual cortex in response to changes in visual fields. [omicsonline.org]

Just as in primary open-angle glaucoma, NTG is diagnosed by observing characteristic changes of the optic nerve and/or the visual field that are consistent with glaucoma. [brightfocus.org]

Papilledema

She denied any fevers, chills, nausea, vomiting, as well as headache, lightheadedness, visual changes, or blurriness. [ncbi.nlm.nih.gov]

Typically, the visual changes are recurring brief episodes lasting less than 30 seconds in which the vision turns gray or blacks, sometimes described as if a veil has fallen [advocurenf2.org]

Other visual changes occur over time, including a smaller field of vision with a larger blind spot and, ultimately, blindness, if successful treatment is not given. [2minutemedicine.com]

Toxic Maculopathy

Patients should be aware of the risk of toxicity and the rationale for screening (to detect early changes and minimize visual loss, not necessarily to prevent it). [scienceopen.com]

Because mfERG testing is an objective test that evaluates function, it may be used in place of visual fields. Amsler grid testing is no longer recommended. [scienceopen.com]

[…] patients use preferred retinal loci (PRLs) in the healthy eccentric part of the retina to fixate, but fixation stability and retinal location are not always optimal for best visual [scienceopen.com]

Chronic Angle Closure Glaucoma

[…] number of medications used to control IOP’, ‘gonioscopic findings’, and ‘mean change in visual acuity’. [cochranelibrary.com]

[…] in corneal endothelial cell count (CECC), change in best corrected visual acuity (BCVA), etc.) [cochranelibrary.com]

There were limited data on progression of visual field loss, change in ACD, or iridocorneal angle within these studies. [cochranelibrary.com]

Mass Lesion of the Brain

changes Speech deficits Focal sensory abnormalities Headache associated with intracranial neoplasms have the following characteristics: Often is a late complaint Usually [emedicine.medscape.com]

Common symptoms can include changes in cognitive abilities, behavior changes, unsteady gait, visual changes, difficulty finding words, headache, and seizures. [oncolink.org]

Such symptoms include headaches, focal weakness, mental status changes, seizures, ataxia [inability to coordinate voluntary muscular movements] and sensory and visual changes [irsa.org]

Primary Open-Angle Glaucoma

In other cases, the initial sign of damage is some visual field change. Wedge-shaped dark areas may develop, reflecting damage to the retinal nerve fiber layer. [msdmanuals.com]

Visual field changes caused by lesions of the optic nerve include Nasal step defects (which do not cross the horizontal meridian—an imaginary horizontal line between the upper [msdmanuals.com]

[…] and lower parts of the visual field) Arcuate (arc-shaped) scotomata extending nasally from the blind spot Temporal wedge defects In contrast, deficits of the more proximal [msdmanuals.com]

Klüver-Bucy Syndrome

The characteristic features of Kluver-Bucy syndrome include hypersexuality, hyperorality, placidity, hypermetamorphosis, visual agnosia, changes in dietary habits, and memory [ncbi.nlm.nih.gov]

The patient displayed marked behavioural changes including visual agnosia, hypersexuality, hyperorality, a tendency to react to every visual stimulus, and memory deficits. [mdanderson.influuent.utsystem.edu]

The patient displayed marked behavioral changes including visual agnosia, hypersexuality, hyperorality, a tendency to react to every visual stimulus, and memory deficits. [ncbi.nlm.nih.gov]

Halofantrine Poisoning

[…] in the electrooculogram suggest changes in the retinal pigment epithelium and parallel changes in visual acuity. [accessemergencymedicine.mhmedical.com]

[…] after doses of quinine.44 These early retinographic changes, as well as histologic lesions in photoreceptor and ganglion cell layers, provide evidence of direct damage.44 Changes [accessemergencymedicine.mhmedical.com]

Lymphohistiocytoid Mesothelioma

For the last two weeks, he had also developed scleral icterus, intermittent frontal headache, and decreased appetite without any associated visual changes, vomiting, or change [cureus.com]