You searched for "gases"

3446 results found

Unexplained vision loss following exposure to combat

Non-organic vision loss (NOVL) is defined as a decrease in visual acuity or visual field without an identifiable organic cause. NOVL can be particularly challenging and time-consuming to diagnose, especially where the vision loss is superimposed on an element of...

Revision of orbital fracture repairs

This is a retrospective review of 13 patients with sub-optimal outcomes following primary orbital fracture repairs who underwent revision surgery. All had fractures of the orbital floor, with four involving other orbital walls, and six also involving other facial bones....

Assaying acetylcholine receptor antibodies in the diagnosis of ocular myasthenia

Myasthenia gravis (MG) is an autoimmune disease that leads to impaired neuromuscular transmission. Solely ocular manifestations of MG (OMG) occur in 15-50% of cases, most frequently in the form of fluctuating ptosis and diplopia. Most cases of OMG convert later...

A case series of electroretinography findings in visual snow syndrome

The authors present a case series of individuals referred to an electroretinography (ERG) lab for assessment due to abnormal vision symptoms, over a two year period. Cases with visual snow syndrome (VSS) or isolated visual snow (VS) were included. All...

Homonymous hemianopia due to stroke presenting symptoms and lesion locations

A retrospective case notes review was undertaken of patients diagnosed with homonymous hemianopia following a radiologically confirmed stroke. A total of 85 patients were identified by searching an electronic medical records system over an 11-year period. Data were extracted from...

What are the characteristics of patients reporting diplopia in giant cell arteritis?

The authors present a retrospective study of individuals diagnosed with giant cell arteritis (GCA) consecutively over a six-year period at a single tertiary ophthalmic centre. The characteristics of binocular diplopia prior to GCA diagnosis was collected from medical records and...

Does modern radiological imaging detect lesions associated with internuclear ophthalmoplegia?

The authors present a retrospective case review including all patients with a diagnosis of internuclear ophthalmoplegia (INO) presenting to two tertiary neuro-ophthalmology centres over a five-year period. The aim of the study was to assess the sensitivity of modern radiological...

Hypothesis for poor visual outcomes in myeline oligodendrocyte glycoprotein-related optic neuritis after first attack

The authors present a retrospective case review with the aim of describing the group of patients with myelin-oligodendrocyte glycoprotein-associated optic neuritis (MOG-ON) who had poor visual outcomes following their first attack despite rapid treatment. The study was conducted at a...

Outline of clinical care for healthy newborns with uncomplicated conjunctivitis in the US

The purpose of this study was to explore the current state of clinical care for healthy newborns with uncomplicated ophthalmia neonatorum (ON) using a large electronic health record dataset. Despite the existence of national guidelines for antepartum screening for N....

The assessment of pupils and 
pupillary reactions

Understanding pupillary reactions is vital in understanding basic neuro-opthalmology. It is a skill required in eye casualty, clinics and perhaps most importantly, exams. To start at the beginning, the pupil is the central aperture of the iris, its size controlling...

The results of the last survey Feb 2020

I appreciate that I keep on reiterating it, but again we see so much practice variance. Who is right and who is wrong? Is there a right or wrong approach? And does it matter? I think it probably does matter....

LSHTM: Skills for Eye Field Research

This course takes place in November/December each year on Thursdays and Fridays over 3 weeks (5 teaching days and one day for the written assessment). All sessions are delivered face-to-face for the whole day (09:30 - 12:45 and 14:00 -...