You searched for "gases"

3550 results found

Joint statement on improving driver vision standards across the UK

UK road safety is under renewed scrutiny. As the Government prepares its new road safety strategy, we believe now is the time to modernise the UK’s approach to driving vision and make our roads safer for everyone. We welcome and...

Periorbital and subconjunctival emphysema - a sign of orbital rim fracture

Background Orbital emphysema is a condition where air is present in orbit or periorbital tissues [1]. It is most commonly caused by trauma leading to orbit fracture, where air from paranasal sinuses is allowed to enter the orbit. The most...

Audiology and ophthalmology: A comparative perspective on diagnostics and patient care

I’m here with Chris Gordon and Anthony Vukic from Gloucestershire Hospitals NHS Foundation Trust to find out how two professions that may appear unrelated on the surface actually have a lot in common. Some of this article might surprise you....

Neuro-ophthalmology Illustrated (3rd edition)

I have a slight hatred of neuro-ophthalmology. It seems bizarre and foreign to me and I know I’m not the only one who groans at getting a patient with diplopia or a non-specific headache. So I will always be pretty...

Practical application of cataract risk stratification

This study assessed the practicability of a risk stratification system, the New Zealand Cataract Risk Stratification (NZCRS) in a major teaching hospital. The scoring system was as follows: three points for Dense cataract, pseudoexfoliation (PXF), phacodonesis, previous vitrectomy and only...

Risk of CNV related to angioid streaks in PXE

This retrospective cross-sectional study investigated 301 patients with pseudoxanthoma elasticum (PXE) for prevalence of choroidal neovascularisation (CNV) and macular atrophy. Some patients were excluded due to missing or poor-quality imaging or the fact that they didn’t have angioid streaks, leaving...

Disc-fovea angle measurements for objective cyclotorsion review

The author measured the disc-fovea angle (DFA) in 249 healthy people (81 male, 168 female) as part of a retrospective study of 44 to 70-year-old adults. These were grouped as (1) aged 44 / 45 years, (2) aged 59-70 years,...

Testing of binocular contrast sensitivity as an objective measure of severity in intermittent exotropia

The purpose of this study was to compare the binocular contrast sensitivity ratio (measured with the Vision CSV-100 vector chart) between 40 intermittent exotropia patients and 40 normal controls. The authors also evaluated the effect of intermittent exotropia compensation status...

Large vs. small posterior capsulotomy size and visual angle opacification rates

The purpose of this study was to assess the relationship between posterior capsulotomy size and significant visual angle opacification (VAO) in congenital and developmental cataract. This was a retrospective case control of children aged under seven years of age over...

Improving eye care for children with learning difficulties: a view from SeeAbility

Marek P Karas from sightloss charity SeeAbility examines why children with a learning disability do not access the eye care they need and asks how the system needs to change. Children with a learning disability are 28 times more likely...

Cornea, 2-Volume Set: Fundamentals, Diagnosis, Management and Surgery of the Cornea and Conjunctiva (4th Edition)

Originally published in 1997 as a comprehensive set of three volumes on cornea and external eye disease, this two volume edition, published at the end of 2016, offers “a complete multimedia resource, in print, online, eBook and video format”. There...

Telemedicine strategies in ophthalmology: harnessing established and emerging technologies for lasting solutions

The author considers recent progress and shares insights from leading practitioners in telemedicine applications and digital technology strategies. Amidst COVID-19 and combined mitigation and suppression measures, hospitals and clinics have responded rapidly to strengthen telemedicine strategies and virtual healthcare services...