You searched for "Optics"
Case report review of children with septo-optic dysplasia and optic nerve hypoplasia
3 April 2023
| Claire Howard
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EYE - Neuro-ophthalmology
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Vision, nystagmus, optic nerve hypoplasia, paediatrics, septo-optic dysplasia, strabismus
Septo-optic dysplasia (SOD) and optic nerve hypoplasia (ONH) cause congenital visual impairment. Their aetiology is mostly unknown. The authors aim was to investigate the prevalence of specified ophthalmological features in patients with these disorders. These features included impaired visual acuity,...
Using a tumour registry to investigate optic nerve gliomas
31 October 2023
| Lauren R Hepworth
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EYE - Neuro-ophthalmology
This study is a retrospective comparative analysis. Patients with optic nerve glioma and pilocytic astrocytoma were identified through the Surveillance, Epidemiology and End Results (SEER) cancer registry covering a 42-year period using standardised codes. The following data was extracted: basic...
Predicting visual prognosis of patients with methanol poisoning
4 February 2025
| Jonathan Chan
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EYE - Neuro-ophthalmology
Symptoms of methanol poisoning often occur 12–24 hours after oral consumption, and visual symptoms are seen in approximately 50% of cases. This study aims to investigate the role of optic nerve diffusion status on cranio-orbital magnetic resonance imaging (MRI) in...
The International Council of Ophthalmology: what is it and is it useful for UK ophthalmologists?
1 April 2018
| Simon Keightley
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EYE - General
ICO Director for Examinations and Assessments, Simon Keightley, explains the history and role of the organisation today, as well as outlining recent changes to the ICO examinations. The International Council of Ophthalmology (ICO) is the only international medical specialty organisation...
Cutting-edge practice in glaucoma care: what, how and why?
1 April 2016
| Nick Strouthidis, Winifred Nolan, Keith Barton
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EYE - Glaucoma
More effective treatments and drug delivery modalities, implantable minimally invasive glaucoma surgical (MIGS) devices, as well as accelerating clinical research programmes, will transform the surgical and clinical management of glaucoma in the near future. There is also an ever-greater emphasis...
A near miss
A 55-year-old gentleman presented with a ‘blurry patch’ to his left eye which he had noticed for the past two months. The visual acuity with correction was 6/5 in the right eye and 6/6 in the left eye on the...
Retinoblastoma mortality associations with choroidal and optic nerve invasion
The authors present a retrospective cohort study. Data was extracted from the National Cancer Institute’s Surveillance Epidemiology and End Results (SEER) database, based in the US and founded in 1973. Cases of retinoblastoma were extracted using the inclusion criteria of...
Using modified staging criteria to determine optic nerve invasion in retinoblastoma
This paper reports the use of a modified staging criteria for optic nerve invasion in extraocular retinoblastoma and its correlation with treatment outcomes in 21 patients. The average age at presentation was 41 months (7–120) and there were 14 unilateral...
Retrograde maculopathy in glaucoma
1 October 2017
| Chrysostomos D Dimitriou
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EYE - Glaucoma
Macular optical coherence tomography (OCT) analysis can be used for quantitative measures of optic nerve atrophy at a location far away from the optic nerve head. This has recently led to the discovery of microcystic macular oedema (MME), in the...
Visual prognosis in Irish Leber’s hereditary optic neuropathy
1 December 2022
| Claire Howard
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EYE - Neuro-ophthalmology
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Leber’s hereditary optic neuropathy, idebenone, inherited optic neuropathy, mtDNA, ophthalmic genetics, optic atrophy
Leber’s hereditary optic neuropathy (LHON) is an inherited optic neuropathy This paper presents a retrospective review of clinical data from patients with LHON presenting to an Irish tertiary referral ophthalmic hospital. Clinical and genetic characteristics were assessed for useful biomarkers...
Principles of contact lens fitting in keratoconus
Keratoconus is an ectatic condition of the cornea characterised by progressive conical distortion with irregular astigmatism, myopia and apical protrusion. Most cases progress slowly resulting in varying degrees of myopic astigmatism. Management of keratoconus includes spectacles, soft contact lenses, a...The embryology of the eye
1 December 2015
| Jacob Cook
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EYE - Cataract, EYE - Cornea, EYE - General, EYE - Glaucoma, EYE - Imaging, EYE - Neuro-ophthalmology, EYE - Oculoplastic, EYE - Orbit, EYE - Oncology, EYE - Paediatrics, EYE - Pathology, EYE - Refractive, EYE - Strabismus, EYE - Vitreo-Retinal
Nobody claims to like embryology. At least nobody I know. It has been a neglected part of the curriculum since time immemorial and a vicious cycle occurs in which those with an incomplete understanding fail to appreciate the inherent beauty...
