You searched for "perimetry"

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Acanthaemoeba keratitis

In the second of this series I describe a case of Acanthaemoeba keratitis (AK) that was misdiagnosed for a prolonged period which resulted in a devastating outcome. This is one of half a dozen similar medico-legal cases I have dealt...

The results of the last survey Oct20

The point of this series is to find variations in practice and to raise them to you, the readership, so you can review and reflect upon them. I am aware there is not always a ‘correct’ way of doing things,...

Melanocytoma of the optic disc

Melanocytoma is a heavily pigmented lesion, composed of melanocytes and is a variant of melanocytic naevus. It classically occurs at the optic disc and is usually benign, static and asymptomatic. However, it can occasionally grow and invade the retina or...

Blurred vision post liver transplant: to blame the house cat or not?

This article outlines a case of atypical ocular toxoplasmosis associated with immunosuppression. There were two potential sources of infection in this patient and we describe how we concluded which was the most likely. Case report A 33-year-old female was referred...

Macular imagery: observing the visual sensations pre- and post-Jetrea injections

A 63-year-old woman, a professional painter, was diagnosed with vitreomacular traction (VMT) in 2017. She had a history of metamorphopsia, drop in visual acuity (VA) in the left eye (6/6 in the RE; 6/18 in the LE), foveal vitreomacular traction...

The madarosis mystery: unravelling the clues to a host of health issues

Eyelash madarosis is a medical condition characterised by the loss of eyelashes caused by the destruction of hair follicles. It can range from a few missing lashes to a complete absence of lashes on the eyelids. This condition can be...

Braille phones, glaucoma implants and screenshots

Basic phone for Braille readers (or kids and the elderly) We’ve previously covered the extensive features of smartphones that can help the sight impaired. It’s clear, however, that smartphones are not for everyone. One alternative is a custom made Braille...

A connected workplace - Part 2

In Part 1 of this topic (bit.ly/ENconnected) the need for a mature ophthalmic imaging network was described. Here, I provide a scoring scheme that can be used to articulate the maturity of existing devices. As with any scoring system, the...

Envision Glasses – a different take on a sight impairment wearable (part 1)

In recent issues we reviewed the OrCam MyEye Pro, a glasses mounted mobile device that can assist sight impaired users. This time we are taking a look at the Envision Glasses, a comparable device that takes a different approach (see...

The future of binocular viewing systems?

I recently had the pleasure to visit Vision Engineering’s headquarters and manufacturing facility in Woking, UK. Vision Engineering have built an international reputation for engineering microscopes that provide 3D visualisation without the use of traditional optical eyepieces. Although the company...

Empatheyes

For Dec/Jan 2024 we are showcasing a remarkably well-named technological solution. Empatheyes provides a unique way for people to increase their understanding of the experience of having a sight disorder. Whether for parents of children with sight disorders, corporate awareness...

Internet security Q&A

Internet security advice is constantly changing in response to new and evolving threats. For this reason, it is timely to provide an update on recommended practices and new technologies. For ease of perusal the information is presented as a series...