You searched for "Optics"
A case study of posterior globe flattening in idiopathic intracranial hypertension
The authors present a single case of posterior globe flattening without papilloedema in idiopathic intracranial hypertension. The case was a 64-year-old woman with a one-year history of transient visual loss in her left eye only. Visual acuity was 20/20 in...
A novel way to distinguish between types of anterior ischaemic optic neuropathy
The authors evaluate the monocyte to high-density lipoprotein (HDL) ratio (MHR) in patients with arteritic and non arteritic anterior ischaemic optic neuropathy (A-AION / NA-AION). A distinction between the two types of AION is essential to begin appropriate treatment, which...
Measurement considerations in OCT results with suspected glaucoma
The purpose of this study was to determine retinal nerve fibre (RNFL) thickness parameters and assess the relationship between the cup-to-disc (CD) ratio and RNFL measurements of paediatric patients who had optic nerve appearance suspicious for glaucoma based on enlarged...
Using MRI to assess normal variation in optic chiasm anatomy
The authors present an MRI study including 61 MRI scans using a 1.5 T with slice thickness of 1 or 5mm and the sequence showing the highest resolution of the chiasm. A predetermined set of measurements were taken in a...
A retrospective medical notes review in patients with poor vision due to NAION
Very severe visual loss (hand movements or less) is typical of arteritic anterior ischaemic optic neuropathy (AION) and relatively rare in non-arteritic AION (NAION). This study aimed to report the frequency of very poor visual acuity (VA) in NAION. The...
Unusual case presentation of arteritic anterior ischaemic optic neuropathy
The authors present a single case of an 84-year-old man with arteritic anterior ischaemic optic neuropathy, but with unusual features on temporal artery biopsy. He presented with a three-day history of sudden onset of loss of vision in his right...
ROPPVAL Syndrome as a differential diagnosis to optic neuritis
Optic neuritis (ON) is a common cause of visual loss in young patients. Patients with eye pain and ipsilateral visual loss are often referred into neuro-ophthalmology clinics with a possible diagnosis of ON. In 2018 Jefferis et al. reported a...
Outcomes of chemo versus no therapy for optic pathway glioma in NF1
The aim of this study was to evaluate the visual outcomes of a cohort of children with optic pathway gliomas and neurofibromatosis type 1 (NF1), with comparison of children treated with chemotherapy or not. This was a retrospective study of...
Assessing possibility of deferring lumbar puncture in mild idiopathic intracranial hypertension
This was a retrospective review of patients consecutively presenting with idiopathic intracranial hypertension (IIH) to a tertiary neuro-ophthalmology clinic without a lumbar puncture (LP) over an eight-year period. Inclusion criteria included true optic disc oedema, retinal nerve layer thickness ≤300µm,...
Using bupivacaine to the medical rectus in addition to lateral rectus recession for convergence insufficiency type intermittent exotropia
This is a retrospective study of 60 paediatric optic pathway glioma (OPG) patients (NF1 or sporadic) presenting to Great Ormond Street between 2003-2017. Median follow-up was 82 months. Analysis was divided into best and worst eye vision representing level quality...
Case report of Leber hereditary optic neuropathy (LHON)
This case report presents a 74-year-old male patient who developed LHON, with a previous diagnosis of bilateral macular holes. LHON occurs predominantly in healthy young men and onset in older age ranges increases the likelihood that the patient will have...
