You searched for "gases"

3625 results found

Poppers retinopathy: What is it and how do we treat it?

Poppers retinopathy is a relatively unknown phenomenon which afflicts users of poppers but should be considered as a differential in sudden-onset or sub-acute visual acuity loss – particularly in patients with a history of recreational drug use. Raising awareness of...

Baerveldt Glaucoma Implant (BGI)

The authors describe surgical outcomes using the BGI and compared the different techniques used. The main differences described in the implantation technique include the use of a prolene stent in the tube, or fixation of the tube to the sclera....

Less extrusion of StopLoss Jones tubes

This is a retrospective comparison of the survival of StopLoss Jones tubes with conventional Lester Jones tubes. Between 2014 and 2016, 31 StopLoss and 59 Lester Jones tubes were inserted. The authors compared the extrusion and sinking-in rates between the...

BT outcomes under open versus closed sky technique

This retrospective study compared open versus closed sky BT injection techniques without electromyography (EMG) control in 135 patients (31 open sky and 104 closed). Patients were aged 1-50 years for open sky and 2-34 years for closed. There was a...

BT vs primary surgery for infantile esotropia

In this study, the success rate of treatment for infantile esotropia (IET) patients who had surgery because of under correction after botulinum toxin (BT) is compared to those having primary surgery. The study included 52 patients (27 male) with mean...

Strabismus prevalence in a Pakistan population

The aim of this study was to compile the available literature reporting the prevalence of strabismus in Pakistan and calculate the pooled prevalence of strabismus in the Pakistan population. Meta analysis was conducted with 10 studies with a total of...

Eye Healthcare: 90 Years of Progress

Eye Healthcare: 90 Years of Progress by Patrick Condon is far more than a historical account, it is a deeply personal, thoughtful and richly illustrated journey through the most transformative decades in ophthalmology, told by one of Ireland’s most respected...

Aug/Sep 2018 Quiz

History A seven-year-old girl presented with a presumed papillomatous lesion on right inferior fornix (Figure 1). Her parents said the lesion was increasing in size for two weeks. CT scans (Figure 2) revealed a lesion occupying the right medial canthus....

RNIB’s free online resource for pupils and teachers gets a brand-new web platform

Thousands of children and young people across the UK with vision impairment and/or difficulty reading standard print, due to conditions like dyslexia, can now access more than a million books and images more quickly and easily after RNIB’s Bookshare service...

Essentials of OCT in Ocular Disease

Sir Isaac Newton was the first to establish the technique of low coherence white light interferometry. Following on from this, the principle of laser interferometry as an imaging modality for retina was applied by David Huang and his associates in...

Pituitary adenoma causing compression of the optic chiasm

A 21-year-old girl presented to her general practitioner (GP) with a three-month history of headaches, becoming more frequent and associated intermittent vomiting that did not improve with simple analgesics. There was a strong family history of migraines. She was initially...

Quantum technology first in eye disease detection

Scientists are working on a new device that could lead to a reduction in the number of people who go blind from age-related macular degeneration (AMD).