You searched for "epithelium"
Aug/Sep 2015 Quiz 1
1 August 2015
| Oana Hotu, Guillermo de la Mata, Nikolaos Krassas Nikolaos Krassas
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AMD, Cataract and Refractive, Cornea / External Eye Disease, Emergency Ophthalmology, Genetics, Glaucoma, Imaging, Neuro-Ophthalmology, Ocular Pathology and Oncology, Oculoplastics, Ophthalmology, Optometry, Orbit, Paediatric Ophthalmology / Strabismus, Retina / Uvea / Vitreous
History A 60-year-old woman was referred to ophthalmology with a suspected left eye choroidal naevus. Visual acuity was unaffected in both eyes and she was asymptomatic. Ocular history and medical history were unremarkable. Questions Figure 1: Fundus photograph. 1. What...
Bionic eyes: deciphering the neural circuitry of vision restoration
3 June 2024
| Muhammad Khursheed Ullah Khan Marwat
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Ophthalmology
As the boundaries between technology and biology blur, retinal prosthetics, often dubbed ‘bionic eyes’, present a ground-breaking paradigm shift in addressing blindness. This article delves into the captivating scientific intricacies of these neural interfaces, exploring their mechanisms of action, current...
A tale of two membranes
1 February 2016
| Jan Huelle
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Retina / Uvea / Vitreous
It was the best of times, it was the worst of times... It was the season of Light, it was the season of Darkness... I am fortunate to work on a vitreoretinal firm at the moment and only a few...
Principles of contact lens fitting in keratoconus
1 December 2015
| Inderpaul S Sian, Nabil Habib (Prof)
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Cataract and Refractive
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...
Adaptive optics imaging: resolving single cells in the living eye
1 June 2014
| Michel Michaelides (Prof), Adam Dubis
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Cornea / External Eye Disease
The human retina is unique in the central nervous system (CNS) in that it can be directly visualised non-invasively. Technological advances of several imaging modalities, including optical coherence tomography (OCT), multichannel scanning laser ophthalmoscopy (SLO) and fundus photography, have afforded...
Upper eyelid ulceration as a presenting sign of frontal sinus mucocele
3 October 2022
| Mustafa Al-Hashimi, Ranad Maswadi, Bijan Beigi
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Ophthalmology
Introduction A sinus mucocele is an epithelium-lined sac filled with mucus and desquamated epithelium. It forms secondary to inflammatory processes that occur in a sinus with an obstructed ostium. Predisposing conditions include previous trauma, surgery, tumours, anatomical abnormalities, and chronic...
Viral uveitis
1 October 2019
| Ivan Yip
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Retina / Uvea / Vitreous
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cytomegalovirus, herpes simplex virus, rubella virus, varicella-zoster virus, viral anterior uveitis
This review covers viral causes of anterior uveitis. A viral aetiology should be suspected when anterior uveitis is accompanied by ocular hypertension, diffuse stellate keratic precipitates or the presence of iris atrophy. Most common viruses associated are herpes simplex, varicella-zoster...
Maintenance therapy for CMV endotheliitis
1 August 2016
| Magdalena Popiela
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Cornea / External Eye Disease
Cytomegalovirus (CMV) has been associated with corneal endotheliitis, leading to endothelial cell loss and corneal decompensation. CMV corneal endotheliitis recurrence can affect between 5-60% of eyes after cessation of anti-CMV therapy. Each recurrence of endotheliitis has a detrimental effect on...
Same day air bubble removal after DSEK/DSAEK
1 December 2015
| Magdalena Popiela
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Cornea / External Eye Disease
A complete air removal on same day as descemet’s stripping endothelial keratoplasty (DSEK/DSAEK) leads to prompt restoration of the anterior chamber and thus has been hypothesised to assist with the recovery of endothelial function and promote graft adhesion. The results...
Full thickness macular hole after YAG PI
1 April 2015
| Lorraine North
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Glaucoma
The authors report a case of macular hole post YAG peripheral iridotomy (PI) of a patient with pre-existing vitreomacular adhesion. Although a relatively safe procedure, some anterior segment complications are well documented such as corneal endothelium damage, rise in IOP,...
Pathophysiology of diabetic macular oedema: why combination therapy may be better
1 October 2015
| Winfried MK Amoaku
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Retina / Uvea / Vitreous
The prevalence of diabetes has continued to increase over the years. It is currently estimated that there are 382 million with diabetes worldwide in 2013, and that this figure is expected to rise to 592 million by 2035 [1]. In...
Aug/Sep 2014 Quiz 2
1 August 2014
| Guillermo de la Mata
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AMD, Cataract and Refractive, Cornea / External Eye Disease, Emergency Ophthalmology, Genetics, Glaucoma, Imaging, Neuro-Ophthalmology, Ocular Pathology and Oncology, Oculoplastics, Ophthalmology, Optometry, Orbit, Paediatric Ophthalmology / Strabismus, Retina / Uvea / Vitreous
History A 27-year-old man presented to the emergency department with blurred vision and central scotoma in the right eye (RE) over the previous weeks. He had no relevant medical history and he was not on any current medication. However, he...