A case report of alternating anisocoria with associated nasal congestion
1 April 2018
| Claire Howard
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EYE - Neuro-ophthalmology
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Anisocoria, autonomic, nasal cycle, pupil
The authors have described a group of healthy individuals who show alternating anisocoria, in a previous paper. In these cases, the pupil asymmetry alternates between eyes every few hours, with no observed instances when both pupils are equal in size....
Could medical cannabis be used to successfully treat blepharospam?
1 April 2018
| Claire Howard
|
EYE - Neuro-ophthalmology
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Blepharospasm, cannabis, marijuana, muscle spasm
This study observed the effect of medical cannabis in benign essential blepharospasm (BEB), in addition to standard botulinum toxin treatment. The study comprised of a retrospective chart review on eligible patients and included information on patient demographics, responses, cannabis history...
Development of testing protocols for high and low contrast visual acuity
1 April 2018
| Claire Howard
|
EYE - Neuro-ophthalmology
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Amyotrophic lateral sclerosis, LCD tablet, high-contrast visual acuity, low-contrast visual acuity, pinhole
Dysfunction of the afferent visual system, characterised by impairments in high-contrast visual acuity (HCVA) and low-contrast visual acuity (LCVA) have been demonstrated in some neurological conditions such as multiple sclerosis and Parkinson’s disease. HCVA and LCVA are also potential quantitative...
Hemianopia or visuospatial neglect: differences in information processing
1 April 2018
| Claire Howard
|
EYE - Neuro-ophthalmology
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Eye movements, hemianopia, neglect, semantic priming
It is widely reported that visuospatial neglect and hemianopia may be superimposed, and disentangling the two conditions can be pose difficulties for clinicians. The authors of this paper explored the differences in implicit information processing which is effective in patients...
Association between colour vision impairment and amyotrophic lateral sclerosis (ALS)
1 April 2018
| Claire Howard
|
EYE - Neuro-ophthalmology
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Amyotrophic lateral sclerosis, colour vision, desaturated L’Anthony D-15, retinal disease
The purpose of this study is to test the hypothesis that colour vision impairment is associated with amyotrophic lateral sclerosis (ALS). Abnormalities of the inner and intermediate retinal structures in patients with ALS have been described using optical coherence tomography...
Early diagnosis of pituitary apoplexy using combined MRI findings
1 April 2018
| Claire Howard
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EYE - Neuro-ophthalmology
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Pituitary apoplexy, pituitary ring sign, sphenoid sinus mucosal thickening
The author presents a literature review searching the terms ‘pituitary ring sign’ and ‘sphenoid sinus mucosal thickening’ in the context of pituitary apoplexy from 1990 until the present day. These two findings are both magnetic resonance imaging (MRI) signs of...
Treatment for post stroke visual impairment – clinical practice versus literature evidence
1 April 2018
| Claire Howard
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EYE - Neuro-ophthalmology
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Management, stroke, treatment, vision, visual impairment
The aim of this paper is to compare the treatments reported in a large scale stroke study (Vision in stroke (VIS) Study) against the treatments identified in a full systematic literature review. The purpose was to identify which treatment /...
A comparison of colour vision tests in the presence of contrast sensitivity loss
1 February 2018
| Claire Howard
|
EYE - Neuro-ophthalmology
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Contrast sensitivity, Farnsworth D-15, Hardy-Rand-Rittler, Ishihara
This study analyses the effect of contrast sensitivity (CS) loss on colour vision (CV) testing, using a variety of colour vision tests. The authors used a computer model for CS loss to determine its effect on CV testing scores for...
Unexplained vision loss following exposure to combat
1 February 2018
| Claire Howard
|
EYE - Neuro-ophthalmology
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Functional visual loss, malingering, non-organic visual loss
Non-organic vision loss (NOVL) is defined as a decrease in visual acuity or visual field without an identifiable organic cause. NOVL can be particularly challenging and time-consuming to diagnose, especially where the vision loss is superimposed on an element of...
Predicting causes and prognosis in cases of optic disc swelling
1 December 2017
| Claire Howard
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EYE - Neuro-ophthalmology
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Bilateral, cause, optic disc swelling, unilateral
The authors reviewed 93 consecutive cases with optic disc swelling (ODS) with the purpose of comparing the clinical manifestations and prognosis between cases. The aim was to understand the differences in frequency and clinical features of ODS, relating these to...
Risk of developing pseudotumor cerebri in women using a levonorgesteral intrauterine device
1 December 2017
| Claire Howard
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EYE - Neuro-ophthalmology
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Contraception, idiopathic intracranial hypertension, intrauterine system, levonorgestrel, pseudotumor cerebri
Pseudotumor cerebri (PCT) is a disorder causing increased intracranial pressure without a mass lesion, usually seen in obese women of childbearing age. Idiopathic intracranial hypertension is an idiopathic form of the disorder, but several medications have been associated with the...
Risk factors for non-arteritic ischaemic optic neuropathy in an Asian population
1 October 2017
| Claire Howard
|
EYE - Neuro-ophthalmology
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Korean, non-arteritic anterior ischaemic optic neuropathy, systemic risk factor
The authors reviewed the medical records of 45 Korean patients with non-arteritic anterior ischaemic optic neuropathy (NAION) and 45 healthy controls, in order to determine risk factors for the condition in an Asian population. Previous studies looking at risk factors...
