You searched for "gases"

3442 results found

Understanding vasoproliferative retinal tumours

Syed Irtiza Ali Shah explores this rare and unusual condition through a fascinating case presentation. Vasoproliferative tumours of the retina (VPTR) are a vascular mass with an associated exudative retinopathy alongside the presence of minimally dilated feeder vessels. This is...

A pattern surgery

The authors describe the efficacy and safety of superior oblique (SO) hang-back recession with A pattern strabismus and SO overaction. A pattern was defined as a difference of >10PD from elevation to depression. SO overaction was graded as +1 to...

Online retinoblastoma surveillance tool

Given the vision and life-threatening course of retinoblastoma (RB), it has become a significant heritable childhood cancer to screen for. To recommend surveillance, risk must be estimated and genetic testing plays a vital role. However, genetic tests vary based on...

Exploiting nature’s randomised trials of eye disease

Confounding and reverse causation in observational ophthalmic epidemiology Traditional observational studies are inherently limited in establishing a causal effect of an exposure on an outcome of interest. One fundamental limitation is confounding, whereby causation is incorrectly attributed to a third...

Lived experience with vernal keratoconjunctivitis (VKC)

This study was undertaken to explore the experience of living with VKC. Nine families were interviewed – paired interviews with patients and parents using semi-structured approaches (May-October 2018). Interviews continued until data saturation was reached with no new information. The...

Headaches in ophthalmology (part 2)

Ophthalmologists see a large number of patients with headaches or facial pain in the ophthalmic outpatient clinics or in emergency clinics. Over two articles, I will discuss several causes of headaches, ocular manifestations and proposed management and referral options. It...

Mast cells in Graves’ ophthalmopathy

Graves’ ophthalmopathy (GO) is a potentially sight-threatening ocular disease, occurring in patients with hyperthyroidism due to Graves’ disease. Also known as thyroid-associated ophthalmopathy, GO is characterised by orbital infiltration by immune cells including macrophages, T cells and plasma cells, which...

A tale of two membranes

It was the best of times, it was the worst of times... It was the season of Light, it was the season of Darkness... I am fortunate to work on a vitreoretinal firm at the moment and only a few...

Training in Ophthalmology: The Essential Curriculum (second edition)

This textbook was first introduced in 2009, aimed at junior trainees and tailored to fit with the new ophthalmic specialist training (OST) curriculum. The second edition updates the clinical information to reflect changing practice and introduces two new chapters: refractive...

New Swansea eye hospital officially opened by Lord Mayor

A new hospital specialising in NHS eye patient services has been officially opened by the Lord Mayor of Swansea, Councillor Mike Day.

Ocular electrophysiology

A 34-year-old woman, who is a CEO in a multinational firm, has been losing vision over the last 12 months. She has seen her opticians, who initially tried different glasses but could not improve things. Clinical examination is unremarkable. How...

Glaucoma UK urges people to get their eyes tested amidst rise in glaucoma cases

With the number of people living with glaucoma in the UK expected to increase by almost a third between 2020 and 2035, Glaucoma UK is urging people to get their eyes tested.