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A comparison of light sources in retinal imaging

Before starting to talk about the light sources present in retinal imaging, it is necessary to start from the base: the light. Light is an electromagnetic wave whose smallest part is the photon (or quantum of light). A high frequency...

Static subjective visual vertical (SVV) in the normal visual system

Graviception is the perception of a persons’ orientation relative to gravitational force. This can be measured by means of subjective verticals, which can be divided into three tests: subjective visual vertical (SVV), subjective postural vertical (SPV) and subjective haptic vertical...

Nonarteritic anterior ischaemic optic neuropathy

This review article describes nonarteritic anterior ischaemic optic neuropathy (NAION). This condition is one of the common causes of visual loss in adults. The article uses a good range of references and is divided under the headings of; demographics, clinical...

Imaging without a slit-lamp, more Google Glass news and strabismus humour

Pinterest Many of you will know about this site that organises collections of mostly graphical information. It’s used heavily for fashion, recipes and cupcakes. Well, it seems it has also become quite a useful resource for ophthalmology, optometry and related...

Q&A: Mr Goel and Mr Loomba on alcohol delamination and phototherapeutic keratectomy (PTK) for the treatment of recurrent corneal erosion syndrome

Recurrent corneal erosion syndrome is a common, recurrent condition caused by abnormal epithelial adhesion to the underlying basal lamina. Spontaneous breakdown of the corneal epithelium can lead to the sudden onset of ocular pain, blurred vision, tearing and photophobia, typically...

How to pass FRCOphth Part 1 on the first attempt

Studying for this exam makes one wonder how there is so much to know about such a small organ. The FRCOphth Part 1 examination is notorious for its low pass rate, with only 20–40% of candidates succeeding at each sitting....

Obituary: Sohan Singh Hayreh (1927 - 2022)

Sohan would have been 95 on 6 November this year, but due to complications of COVID-19, he passed away on 29 September.

Blind veterans take to the hills for life-changing winter survival course

A group of inspirational Sight Scotland Veterans recently ventured up the Cairngorms to participate in a life-changing Winter Skills Course.

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,...

The results of the last survey Oct21

This edition’s survey questions moved away from the deep and ethically charged questions of the recent surveys and focussed on simple and straightforward issues. This is really where the surveys began in exploring the minor practice variations which we have...

GDPR, email and private practice

A new set of data protection regulations became law in the EU (including the UK) in May 2018. General Data Protection Regulation (GDPR) replaces the 1988 Data Protection Act. The regulation brings new rights and expectations about how our personal...

Using OneNote in teams

Much like Outlook, Word, PowerPoint and Excel, OneNote is part of Microsoft Office. For this reason it is likely that you will have access to it in your work environment. Used in isolation it is an easy to use and...