You searched for "Optics"
Rare presentation of giant cell arteritis in Chinese subjects
Only a few case reports of biopsy-proven GCA (BpGCA)-associated vision loss in Chinese subjects have been published. This paper presents three elderly Chinese subjects with BpGCA who presented with vision loss. A search of the literature was also conducted to...
Is virtual reality perimetry as reliable as static perimetry in detecting neurological visual field loss?
1 July 2024
| Claire Howard
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EYE - Neuro-ophthalmology
This study compares agreement between virtual reality perimetry (VRP) and static automated perimetry (SAP) in a variety of neuro-ophthalmological conditions. For this work the Order of Magnitude (OM) VR-based visual field assessment system was used which has been developed by...
Thinking about purchasing your first Volk lens or looking to expand your collection?
5 August 2025
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Company Profiles, Contracts & Distributors
Sister companies Altomed and Mid-Optic are proud to be official Volk distributors. With over 40 years of experience, our expert team can offer personalised guidance to help you choose the right lens for you. In addition, when you buy from...
Revealed: The growing crisis of workplace-related eye injuries
5 March 2025
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industry, NuVision, occupational health, occupational safety, eye health, patient information
Nearly half of UK workers believe their job puts their eye health at risk, yet are businesses overlooking this critical issue? New survey findings commissioned by NuVision Biotherapies highlight a rising yet often ignored concern in workplace health; eye injuries...
Understanding spaceflight-associated neuro-ocular syndrome (SANS): what do we know?
Introduction Formerly known as visual impairment and intracranial pressure syndrome (VIIP), space-related neuro-ocular syndrome (SANS) is defined by a collection of ophthalmic and neurological findings in astronauts after long-term spaceflight [1]. Changes in the eyeball, such as hyperopic shift, during...
A clinical review of optic neuropathy associated with amiodarone
1 August 2017
| Claire Howard
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EYE - Neuro-ophthalmology
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Amiodarone, arrhythmia, optic neuropathy
The authors present a clinical overview of the occurrence of visual loss secondary to optic neuropathy associated with the use of the antiarrhythmic agent amiodarone. Amiodarone is prescribed for the management of atrial fibrillation and ventricular tachycardia / fibrillation. However,...
Advanced vestibular Schwannoma case report
1 December 2016
| Claire Howard
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EYE - Neuro-ophthalmology
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Cerebellopontine angle tumour, papilloedema, vestibular schwannom
Vestibular Schwannoma is a benign, slow growing tumour which usually presents with unilateral hearing loss. It causes symptoms and findings on ophthalmic examination when the diagnosis is delayed. Ophthalmic findings may be related to the effect of the expanding mass...
Differential diagnosis in cases of suspected neuroretinitis
1 June 2016
| Claire Howard
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EYE - Neuro-ophthalmology
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Cat scratch disease, macular star, neuroretinitis, optic disc oedema, rickettsiosis, systemic hypertension
Neuroretinitis is a form of optic neuropathy typically characterised by acute unilateral visual loss with optic disc oedema and macular exudates arranged in a star figure around the fovea (complete or partial star). The purpose of this study was to...
A rare case of ophthalmic complications following allergic fungal sinusitis
1 February 2016
| Claire Howard
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EYE - Neuro-ophthalmology
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Allergic fungal sinusitis, compressive optic neuropathy, magnetic resonance imaging
The authors present an unusual case report of a 32-year-old man with advanced allergic fungal sinusitis, presenting with severe bilateral visual loss and restricted ocular motility. On presentation he had an 18 month history of progressive nasal obstruction, as well...
PD-1 and retinal ganglion cell death
1 February 2016
| Graham Wallace
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Apoptosis, Large retinal ganglion cells, Neuroprotection, Optic nerve crush, Programmed cell death-1
Death of retinal ganglion cells (RGC) in conditions like glaucoma leads to permanent visual loss. RGC death can be due to the initial stress such as raised intraocular pressure or secondary to mechanism such as oxidative stress. Programmed cell death-1...
Toric intraocular lens rotation related to the capsulorrhexis
The risk factors for postoperative rotation in the early post-operative period; a longer axial length, younger patients, and with the rule astigmatism as described by Miyake T et al. (JCRS 2014) in a case series of six eyes. This letter...
