You searched for "Optics"

1420 results found

D-EYE device versus direct ophthalmoscope

D-EYE digital ophthalmoscope is a fundus camera device that attaches to a smartphone and is used in conjunction with a HIPAA-compliant app. The authors conducted a study in which 25 medical students examined the fundi of two undilated patients with...

An unusual presentation of dysthyroid orbitopathy

The authors present a case of a 50-year-old male smoker who presented with bilateral gaze evoked amaurosis (GEA), i.e. the patient was aware of loss of vision in all gaze positions other than the primary position. The patient was being...

Neuro-ophthalmic disease patterns in Southeast Asia with particular reference to giant cell arteritis

As indicated in an earlier article in Eye News [1] Dr Cullen was invited in 2000 to the Singapore National Eye Centre (SNEC) as visiting Professor with a specific remit to set up a specialist neuro-ophthalmology service, which was the...

How to examine the visual system Part 2: Accommodation, pupils, fundoscopy and additional tests

Examining the visual system can be a tricky skill for medical students to master, yet it is a task that is frequently tested in examinations. This is the second of a two-part series of articles, which together aim to improve...

Glaucoma: 30 years on

Back in 1993, the late and great Barry Cullen FRCS (Cavan born, Dublin trained), the first editor of Eye News, asked me to write an article about the current treatment of chronic open angle glaucoma (COAG). At the time I...

Eyes on the road – visual standards for car drivers

The author examines the current visual standards required by drivers and asks whether more needs to be done to make roads safer. Are the public adequately protected by the current system of visual standards required by drivers? In a survey...

An update on inherited retinal disorders (part 1) – overview and assessment of inherited retinal disease

Part 2 of this topic can be found here Inherited Retinal Disease (IRD) is the leading cause of blindness certification in the working age population (age 16-64 years) in England and Wales and the second most common in childhood [1]....

Optometry Today’s new essential guide for myopia management

Optometry Today (OT) has published the second edition of its myopia management guide.

Anterior ischaemic optic neuropathy post cataract surgery

This retrospective population-based cohort study assessed whether there was an increased incidence of anterior ischaemic optic neuropathy (AION) post cataract surgery compared to patients that had not had cataract surgery. They reviewed the notes of all patients diagnosed with AION...

Using a driving simulator to explore the effect of visual field loss from optic disc drusen

The purpose of this study was to compare driving simulator performance of participants with visual field loss (VFL) from optic disc drusen (ODD) with a normally sighted control group and a group of individuals with glaucoma. Data on performance and...

Predicting ischemic lesion location using perimetry

The authors present a retrospective records review, using the search terms homonymous hemianopia, visual field loss and MRI. Only posterior circulation artery territory ischemic strokes were included. Demographics, stroke details and initial and follow-up with 24-2 SITA Standard perimetry results...

Complications of orbital cavernous venous malformation excision

This is a review of 290 patients who underwent excision of orbital cavernous venous malformations (OCVM) between 1970 and 2021, looking to identify the risk factors for a poor visual outcome following surgery. Intraconal lesions were classified as Group I,...