You searched for "Optics"

1873 results found

Mechanism of colour vision involvement in multiple sclerosis

There is evidence to show that the optic nerve and retina are affected in multiple sclerosis (MS) even without any clinical evidence or history of optic neuritis (ON). MS without optic neuritis causes colour-vision deficit, however, the evidence for selective...

Likelihood of developing multiple sclerosis after optic neuritis diagnosis

Optic neuritis (ON) is a relatively common cause of acute optic neuropathy in young patients which often presents as the first sign of multiple sclerosis (MS). There is a lack of evidence around the factors that are associated with the...

Normative reference values for optic nerve sheath diameter in children

The purpose of this study was to measure optic nerve sheath diameter (ONSD) in paediatric patients without pathology using brain CT performed for various reasons and to provide normal tomographic reference values. This was a retrospective study of CT scans...

Multimodal Retinal Imaging

Understanding of rapidly advancing retinal imaging techniques is important as they have changed the management of retinal conditions considerably. Interpretation of these tests is a vital skill in the armamentarium of every practising ophthalmologist. The book is directed at general...

Using optical coherence tomography angiography to detect MoyaMoya vasculopathy

Moyamoya (MM) disease is a chronic cerebrovascular disease that can lead to progressive stenosis of the terminal portions of the internal carotid arteries and their proximal branches. The authors carried out a cross-sectional cohort study to investigate vascular changes in...

The results of the last survey Aug24

In the first case we were faced with a 55-year-old patient with narrow, potentially occludable drainage angles, no significant cataract, and persistently raised intraocular pressures (IOPs) of 28mmHg with early disc compromise, and normal vision in each eye. It is...

Orbital sphenoid sinus trauma: a rare trauma case

With a high complication and mortality rate, intra-sphenoidal and transorbital trauma poses a high complication rate and remains challenging to manage. Numerous key structures run nearby such as: the optic nerve, internal carotid arteries and ophthalmic arteries. The authors present...

Sub-clinical detection methods in multiple sclerosis

Visually symptomatic multiple sclerosis (MS) provides only part of the required information to assist in understanding the disease. Recently, researchers have concentrated their efforts on diagnosing MS cases in the subclinical period. The aim of this paper was to assess...

Beware the disc in myopic patients

Glaucoma is a chronic and progressive optic neuropathy characterised by damage of retinal ganglion cells. Evaluation of structural damage of the optic nerve is important in glaucoma diagnosis. The ISNT rule states that the neuroretinal rim width is generally widest...

Primary visual pathway changes in individuals with chronic mild traumatic brain injury

Patients with mild traumatic brain injury (mTBI) often self-report vision disturbance despite showing no reduction of visual acuity or fundus examination abnormality. This prospective, observational, cross-sectional study aimed to determine if using a sweeping array of investigations can help diagnose...

OBITUARY: A short tribute to Mike Sanders, Neuro-ophthalmologist

Mike Sanders was Consultant Neuro-Ophthalmologist at St Thomas’ Hospital and the National Hospital, Queen Square in London, 1969 to 1999. He passed away on 25 July of this year. Over this 30-year period he had huge influence over the evolution...

CHEC announces national online CPD event covering critical eye condition that has seen 400% increase in secondary care referrals

CHEC announces national online CPD event covering critical eye condition that has seen 400% increase in secondary care referrals. The seminar is to be hosted by CHEC Clinical Director Mahmoud Rabie and follows the UK rollout of CHEC’s ground-breaking YAG Quantel Capsulo Laser System which significantly improves accuracy in eye treatments.