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557 results found

Features of bacterial orbital cellulitis on MRI imaging

This multi-centre retrospective study from Australia and the UK examined the quantitative and qualitive parameters of magnetic resonance imaging (MRI) imaging in bacterial orbital cellulitis. Twenty MRI scans from 20 patients with pre-septal and orbital fat involvement (mean age: 40.8...

Comparison of MRI finding in oculomotor cranial nerve palsies as a result of inflammation and ischaemia

This study aimed to explore the value of asymmetric enhancement of the cavernous sinus on MRI for differential diagnosis between ocular myasthenia gravis, ischemic or inflammatory oculomotor cranial nerve palsies. Three groups were recruited consecutively over a 30-month period and...

Visual characteristics of spina bifida myelomeningocele

Ireland has a relatively high rate of spina bifida (SB), with a neural tube defect rate of 1.05 per 1000 births of which 47% are SB. This study was an audit of SB myelomeningocele (SBM) cases over an 8-year period,...

Optic nerve swelling – your survival guide (part 1)

Assessment of optic nerve appearance and functions is a daily routine in neuro-ophthalmology. Following a recent high profile court case there has been a significant increase in the amount of referral to ophthalmology departments to assess the optic nerve and...

Non-arteritic anterior ischaemic optic neuropathy (NA-AION): a review

Ischaemic optic neuropathy (ION) is the commonest adult optic neuropathy encountered today in our ageing population, is a common cause of irreversible visual loss and is usually associated with underlying vascular disease. The condition is classified as follows: (a) Anterior...

Thyroid eye disease

Thyroid eye disease (TED) is an autoimmune condition with a spectrum of signs and symptoms, usually associated with Graves’ hyperthyroidism. The diagnosis is based on history and physical examination but there are further investigations that can aid diagnosis if unclear....

Optic nerve swelling – your survival guide (part 2)

In this second article we will discuss bilateral optic nerve swelling, its aetiology, various investigations and possible treatments. We will also discuss various protocols used in the management of suspected optic nerve swelling cases. (Part one of this topic available...

My Top Five: Red flag presentations all resident doctors must know

Ophthalmic emergencies are time-critical situations where delays in recognition or management can lead to permanent vision loss [1]. For resident doctors and medical students, identifying these red flags can be daunting, especially given the complexity of the eye and its...

Orbital Schwannomas

This is a large case series of orbital Schwannomas managed at a single centre over a 26-year period. Twenty Schwannomas are reported, all but one of which was managed surgically. The tumours were all benign, had an insidious onset and...

The Neuro-Ophthalmology Survival Guide, 3rd Edition

Neuro-ophthalmology, a challenging ophthalmic subspecialty, demands an understanding of neuro-anatomical pathways, nuanced examination and advanced imaging. For ophthalmology trainees, foundation doctors, neurologists and emergency clinicians, it can feel daunting to frequently encounter optic neuritis, visual field defects and cranial nerve...

Orbital airgun pellet injuries: A paediatric case pair

Airgun injuries to the eye and orbit can be visually devastating. The pellet need not impact the globe directly to cause visual loss, as the cone shaped orbit may funnel the projectile into the orbital apex and optic nerve. We...

Chronic dacryocystitis?

Lacrimal drainage system tumours are rare and lymphomas account for less than 10% of these tumours [1]. Most patients presenting with lymphoma infiltration of the lacrimal drainage system have a history of previously diagnosed lymphoma elsewhere. We report a case...