You searched for "radiation"

3814 results found

The symbolism of eyes in Halloween traditions and popular culture

Halloween is a festival steeped in symbolism. Pumpkins, skeletons, ghosts and witches dominate the seasonal iconography, each representing broader cultural anxieties about death, darkness and the supernatural. Among these motifs, the eye, often depicted as glowing, disembodied or grotesquely exaggerated,...

Visual disturbance heralding stroke: are we seeing the signs in time?

Isolated visual symptoms may be an early presenting feature of stroke, and timely recognition of such atypical cases is important because treatment for stroke has a limited time-window of efficacy. Stroke occurs in approximately 150,000 people per year in the...

In conversation with Dr Robert B Nussenblatt

Dr Robert B Nussenblatt is Chief of the Laboratory of Immunology at the National Eye Institute, an eminent ocular immunologist and an expert in clinical research design and conduct. Describe the success or relevance of the SUN project. The Standardization...

Paediatric uveitis in India

This article was a retrospective review of paediatric patients presenting to a tertiary hospital in India. Records over a three year period were reviewed. The authors highlight that children account for about 2.2-13.8% of uveitis patients and are at greater...

Eyes on Rwanda: Lessons from an international ophthalmology experience

On the 26 February 2025, I travelled to Rwanda on the invitation of a former Belfast trainee, Michael Mikhail. Michael is now one of only two vitreoretinal (VR) surgeons in Rwanda, a country with a population of 14 million. Born...

Medical treatment of orbital lymphatic malformations

This is a literature review of the use of Sirolimus, to treat orbital lymphatic malformations. Sirolimus is an immunosuppressant used in renal transplants, and acts by inhibiting mammalian target of rapamycin (mTOR), which in turn inhibits activation of T and...

Demyelinating optic neuropathy

Introduction Optic neuritis (ON) is an inflammatory process affecting the optic nerve. After glaucoma, it is the most common optic neuropathy affecting patients under the age of 50. The usual presentation of typical ON is unilateral subacute loss of vision...

Ophthalmology in a War Zone: an interview with Dr Volodymyr Melnyk

It is now nine months since the full-scale Russian invasion of Ukraine commenced in late February 2022, with Putin announcing a “special military operation” to “denazify and demilitarise” Ukraine. The rest of the world, however, saw it for what it...

Aug/Sep 2015 Quiz 2

History A two-year-old female child presented with loss of vision in her left eye. Examination showed leukocoria and intraocular calcification was identified on scanning. The suspected diagnosis was intraocular retinoblastoma and the child underwent an enucleation. The eyeball was submitted...

Ocular manifestations of Whipple’s disease

In this retrospective review of 217 patients with Whipple’s disease (WD), the authors reviewed the presentations of those with ocular manifestations. Ocular signs of WD are under recognised, frequently resulting in misdiagnosis and mismanagement. Mayo Data Explorer, a Mayo Clinic...

Video consultations after COVID-19

In the context of the COVID-19 pandemic, video consultations (VC) in eye care have been adopted in some regions and hospitals as a way of replacing some face to face ophthalmic consultations. I would like to use this column to...

Commonest mistakes during the refraction certificate exam

Ophthalmology specialty trainees are required to pass the refraction certificate exam within the first two years of training. If one passes this exam before entering a training programme, this can add two points to the portfolio during applications. In this...