You searched for "visual"

1302 results found

Comparing visual acuity to visual demand levels in classrooms

This study investigated the actual logMAR and contrast sensitivity demands in a cross-sectional sample of kindergarten through grade 12 classrooms in New York city. This was done to consider the potential benefit in optimising the specificity of visual acuity-based screening...

Visual Fields via the Visual Pathway (Second Edition)

This book is a very well-written and comprehensive text on visual field assessment and interpretation. It includes a large number of illustrations which are of a high quality and make it a good reading experience. The first section of the...

Prediction of visual outcome in IIH

In this prospective study, visual outcome of 40 patients with idiopathic intracranial hypertension (IIH) was compared with clinical and neuro-ophthalmic parameters. The purpose of this was to determine any correlation to try and predict visual outcome for IIH patients. Parameters...

Visual impairment in patients with glaucoma

This retrospective observational study assessed the prevalence of end-of-life visual impairment in patients with glaucoma. A total of 122 deceased patients followed for glaucoma were included and data was collected from patient notes. Sixty-one patients had open-angle glaucoma and 61...

Smartphone based visual acuity

Smartphone technology is becoming widely available to all age groups and settings. Apps using Snellen acuity charts are widely available and this study evaluated the equivalence of a smartphone-based visual acuity chart with a standard 6m Snellen visual acuity (6SVA)...

Non-organic visual loss

Patients can present to eye departments with various signs and symptoms (mostly symptoms) with no obvious organic cause. These patients can be labelled with any of a wide range of diagnoses such as functional visual loss, functional overlay, psychosomatic reaction...

Macular thickness and visual fields

The authors describe a comparison of spectral domain OCT with Humphrey visual fields (HVF) mean deviation (MD) and pattern standard deviation (PSD), examining the retinal thickness of the macula and circumpapillary retinal nerve fibre layer (RNFL) defects. Seventy-three subjects who...

Visual consequences of congenital hypothyroidism

This study evaluated the frequencies of ophthalmic abnormalities in Turkish children with a history of congenital hypothyroidism in a retrospective study of 121 children. Median age was nine months (one to 216) at initial ophthalmic examination. Forty children were ex-premature...

Visual outcomes, visual fields and optical coherence tomography in paediatric craniopharyngioma

This study reviews the visual outcomes of ten patients under the age of 18 years with craniopharyngioma. The paper also reviews the correlation between visual field (VF) testing and optical coherence tomography (OCT) examination and evaluates the role of OCT...

Link between compression of anterior visual pathway structures and visual deficit

The compression of anterior visual pathway (AVP) structures can be observed on neuroimaging. It is not clear whether or not this compression results in damage to these structures. The authors present a single centre retrospective case record review over the...

Static subjective visual vertical (SVV) in the normal visual system

Graviception is the perception of a persons’ orientation relative to gravitational force. This can be measured by means of subjective verticals, which can be divided into three tests: subjective visual vertical (SVV), subjective postural vertical (SPV) and subjective haptic vertical...

Use of acetazolamide for symptoms of visual vertigo

Visual vertigo is a disorder characterised by symptoms of dizziness, vertigo, unsteadiness, disorientation and general discomfort induced by visual triggers. It is currently treated with vestibular rehabilitation therapy, with no effective pharmacotherapy options available for treatment resistant case. Oral acetazolamide...