You searched for "ARN"

260 results found

ARN in North Africa

Acute retinal necrosis (ARN) is a rare cause of uveitis. This paper aims to outline the clinical features of 12 patients with ARN in a referral centre in Tunisia, North Africa. A retrospective review of case notes was carried out....

Acute retinal necrosis presumably caused by Epstein-Barr virus infection

Acute retinal necrosis (ARN) is an uncommon, but serious and potentially blinding condition. ARN is characterised by panuveitis, occlusive vasculopathy and progressive peripheral necrotising retinitis. The diagnosis is clinical but confirmation is sought via aqueous and vitreous sampling. Varicella zoster...

An unusual case of acute retinal necrosis

Case report A 40-year-old Caucasian male presented with a four-day history of redness and progressive painless reduction of vision in the left eye. His visual acuities were 6/4 in the right and 6/36 in the left. The left eye showed...

ARx - Augmented Reality Headset

In a continuing look at wearable technology, for those with sight impairment, for Aug/Sep we are looking at the recently released ARx. In previous issues we have covered the Envision Glasses and the OrCam MyEye. The ARx is a device...

PRN Ranibizumab verses continuous aflibercept in UK clinical practice

This was a multicentre (21 UK hospitals), national EMR study on treatment naïve nAMD eyes, undergoing predominantly as needed (PRN) Ranibizumab or continuous (fixed or treat and extend - (F/TE)) Aflibercept (Af). The primary outcome was change in vision at...

Treat-and-extend regimen in treatment of patients with type 3 neovascularisation

Type 3 neovascularisation, also known as retinal angiomatous proliferation is a distinct subtype of neovascular AMD characterised by intraretinal neovascularisation. This retrospective study included 17 eyes diagnosed with type 3 neovascularisation who were changed from pro-re-nata (PRN) based treatment regime...

Ocular manifestations of multiple sclerosis: an overview

Multiple sclerosis (MS) is an autoimmune demyelinating disease of the central nervous system (CNS), in which there is dissemination of lesions in time (two or more clinical events) and space (multiple lesions seen on brain and spinal imaging). The pathophysiology...

In conversation with Charles Leclercq (ARxVision)

Julian Jackson (Founder and Director, VisionBridge) spoke to Charles Leclercq (CEO, ARx) about the ARxVision, a wearable device that captures the world around us through audio and artificial intelligence to empower blind and low-vision individuals. You can read the Eye...

Possible COVID-19 related maculopathy

COVID-19 is being investigated as a potential cause for various ocular diseases, with growing evidence of related retinal vascular changes, that vary from isolated cotton wool spots and retinal haemorrhages to retinal vascular occlusions [1.2]. COVID-related macular affection has also...

A to Z of X-linked retinopathies

This review article provides an excellent summary of X-linked retinopathies and the corresponding genotype and clinical features. The authors provide a comprehensive overview of each condition in terms of its pathogenesis, clinical features, imaging findings, electrophysiology changes and any current...

What is paracentral acute middle maculopathy?

This is a review article characterising a clinical entity called paracentral acute middle maculopathy (PAMM). The article highlights the fact that retinal capillary plexuses are organised predominantly into three trilaminar capillary layers occupying the area between the nerve fibre layer...

Cataract surgery in uveitis patients

Cataract formation is a common complication of uveitis, causing up to 40% of vision loss in these patients. Cataract results from inflammation +/- corticosteroid therapy and is usually posterior subcapsular, but a small proportion have a rapid increase in nuclear...