You searched for "Radiation"

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Stereotactic radiotherapy for polypoidal choroidal vasculopathy

Polypoidal choroidal vasculopathy (PCV) is a variant of neovascular AMD. It is a disease of choroidal vasculature characterised by abnormal branching vascular network with aneurysmal dilatations (polyps). Features of PCV include pigment epithelial detachments (PED), subretinal fluid (SRF) accumulation and...

Anatomical variations of the nasolacrimal system

The authors report a retrospective observational case series of 734 dacryocystography images; 689 from adult patients and 45 from paediatric patients. Of these 734 images, 35 (4.8%) were found to have an anatomical variant where the nasolacrimal duct emerged from...

The Real Top Gun: Professor Steve Schallhorn

Steve Schallhorn: Fighter Pilot. In the spring of 1987, I travelled to the cinema at Hendon Central in London with some school friends to watch the newly released movie The Witches of Eastwick starring Jack Nicholson and Michelle Pfeiffer. Unfortunately...

Unravelling ocular motility

Ocular motility can often be a slightly abstract concept during the earlier years of ophthalmology training. A large variance on what embodies normality; mythical concepts like fusion and binocular vision, examination techniques that can be fiddly, and complex neuroanatomy all...

Allergic conjunctivitis evaluation by thermography

Thermography is a non-invasive imaging technique, which uses infrared radiation reflected from an object to estimate the temperature of the object. This paper evaluates the use of thermography to assess allergic conjunctivitis objectively, by using an instrument called ocular surface...

Radiotherapy for orbital apex cavernous haemangiomas

This is a review of six patients with cavernous venous malformations (haemangiomas) involving the orbital apex who were treated with fractionated stereotactic radiotherapy. Patients were diagnosed on MRI imaging with only one having had previous surgery to debulk the lesion....

Comparison of surgical options for basic intermittent exotropia

This study compared the outcomes of three surgical options from one surgeon, to treat basic intermittent exotropia. Surgeries included bilateral lateral rectus recession (BLR), unilateral lateral / medial rectus recession / resection (RR), and unilateral lateral rectus recession and medial...

Oral omega-3 fatty acid treatment for dry eye in contact lens wearers

This study evaluates the effect of dietary omega-3 fatty acid supplementation of dry eye symptoms, tear film tests, and conjunctival impression cytology in patients with contact lens wear-associated dry eye. In this randomised double-blind, multi-centred trial, contact lens wearers (n=...

Human factors in the operating room

The importance of minimising human error in surgery is well established. This was initially sparked by lessons learned from the aviation industry in the 1970s after several fatal flight accidents [1]. This became a catalyst for a movement on training...

Dead bag syndrome: a new and rare cause of late IOL dislocation

The dead bag syndrome has recently been described as a cause of late spontaneous intraocular lens (IOL) subluxation and / or dislocation. The capsular bag remains clear years after surgery and then becomes diaphanous and floppy. The authors explanted seven...

Environmental variations in endophthalmitis

In this retrospective cohort study, the authors looked at seasonal and environmental variations in 171 endophthalmitis cases out of 423,297 intravitreal injections. The incidence of this complication was not correlated to monthly snowfall, rainfall, or average temperature. There was no...

Making sense of the orthoptic assessment

Following the Specialty Trainee article on this topic in the February/March 2020 issue, Joe Smith provides a more detailed breakdown of the orthoptic report. Orthoptists investigate, diagnose and manage a wide variety of patients with varying problems. In this article,...