You searched for "gases"

3442 results found

Orbis teams up with the Alcon Foundation and OMEGA to improve eyecare in Zambia

The Orbis Flying Eye Hospital returns to Zambia for a three-week training project in Lusaka coinciding with World Sight Day on October 12.

Direct endoscopic probing for congenital lacrimal duct obstruction

The most common treatment for congenital lacrimal duct obstruction (CLDO) is probing, which is traditionally a blind procedure. Previous literature reports success rates between 78-92%. The authors of this retrospective non comparative case series reviewed the success rates of probing...

Management of diffuse OSSN with topical chemotherapy

Ocular surface squamous neoplasia (OSSN) can be localised to the conjunctiva or, less commonly, diffusely spread over the conjunctiva and cornea. Localised OSSN can be treated by surgical removal with adjuvant cryotherapy and chemotherapy with low rates of recurrence. Diffuse...

OrCam MyEye – innovative sight assistance (Part 1)

For Jun/Jul 20201 and Aug/Sep 2021 we have a two-part review (see Part 2 here) of an innovative piece of sight impairment technology. The device is called a MyEye, made by OrCam. I was given the opportunity to use the...

Esotropia Duane’s syndrome (DRS) surgery

The authors aimed to compare the safety and efficacy of augmented superior rectus transposition surgery with / without medial rectus (MR) recession versus MR recession along in the treatment of esotropic DRS. This was a prospective randomised trial of 20...

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...

Diagnostic error rates for ROP detection by trainee ophthalmologist in middle-income countries

The purpose of this study was to describe errors in ROP diagnosis made by ophthalmologists-in-training from programmes in middle-income countries including Brazil, the Philippines and Mexico who participated in a tele-education programme. Trainees were tested on 20 cases from a...

Acute macular neuroretinopathy

Acute macular neuroretinopathy (AMN) is a rare condition that typically affects young women and presents with photopsia and paracentral scotomata [1]. We describe a case of severe acute macular neuroretinopathy, following Covid-19 infection. A 30-year-old woman presented to the urgent...

Data update for leading causes of CVI in England and Wales

In this article the authors present an epidemiological update, based on certifiable visual impairment (CVI) registration for figures for sight impairment (SI) in England and Wales from the last report of 2007-2008 to the current data for April 2012 to...

Cyclosporine A and pterygium fibroblasts

The matrix metalloproteinases (MMP) are a family of structurally related zinc-dependent extracellular matrix degrading proteinases that have been implicated in facilitating the migration and growth of pterygia. Both MMP- 3 and MMP-13 were found to be overexpressed in the fibroblasts...

Simultaneous surgery for ptosis and strabismus

The authors present the surgical management of congenital ptosis and coexistent strabismus at one centre for a follow-up period of >2 years. This was a retrospective review of 10 patients (17 eyes); nine males. Intermittent exotropia was present in three...

Clinical features of ocular syphilis

The study looked at 24 patients (20 males, four females) with serological evidence of syphilitic infection who presented to a tertiary ophthalmic centre. Ocular involvement was the first manifestation of syphilitic disease in 96% and Human Immunodeficiency Virus (HIV) seropositivity...