You searched for "pigment"

3088 results found

Twenty-five years in retina

In the next of our articles celebrating 25 years of Eye News, the authors look at how the retina specialty has changed over this time and ask what the future might hold. Retinal disease management has benefited from great advances...

More sensitive visual acuity test for age-related macular degeneration

Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world. Primarily associated with ageing, genetic factors and lifestyle choices such as smoking also play a contributory role. Patients with early AMD, characterised by the development of...

Anterior segment imaging: a photographer’s view

My name is Rosalyn Painter and I work within the vision science and ophthalmic imaging team at Bristol Eye Hospital, where we cover all aspects of imaging within the hospital, including fluorescein angiograms, fundus photography, optical coherence tomography (OCT), slit-lamp...

Quiz Feb/Mar 2020

History A 92-year-old female patient was referred for a three-month history of a left conjunctival growth with ocular irritation. Her past medical history included: hypertension, back pain and osteoarthritis, all of which were controlled by medication. On examination: vision in...

How common is ocular trauma in children and what are the clinical features?

The authors present a multicenter retrospective case review with the aim of reporting the incidence and characteristics of paediatric ocular trauma. Records for individuals aged 18 and under with a diagnosis of globe, orbit or adnexal injury over a 10-year...

Part 2: the Arclight Device: frugal imaging for eyecare

In this three-part series (Click here for Part 1 and here for Part 3) Andrew Blaikie and his team explore the role and application of the Arclight Device in Imaging of the Eye. There are many different types of ophthalmic...

Evaluation of ectopia lentis et pupillae (ELP)

The ADAMTSL4 gene encodes proteins for cellular adhesion, angiogenesis, nervous system development and anterior / posterior segment structures. This case report describes a four-year-old female with diagnosis at referral of ELP. A three-generation pedigree was obtained and was negative for...

Sustainability in eyecare: Intraocular gases and the climate emergency

In 2020 the NHS became the first national health system to commit to delivering ‘net zero’ carbon emissions by 2040. The author investigates how the impact of ophthalmic surgery can be reduced. Medical gases have been used in ophthalmic surgery...

Retinal prosthetics: science fiction or a vision for the future?

“Is it a fact – or have I dreamt it – that, by means of electricity, the world of matter has become a great nerve, vibrating thousands of miles in a breathless point of time?” – Nathaniel Hawthorne, The House...

Emerging therapies for geographic atrophy: complement inhibitors show potential to slow progression and preserve RPE and photoreceptor integrity

Geographic atrophy (GA) is an advanced form of age-related macular degeneration (AMD) characterised by progressive, irreversible loss of the retinal pigment epithelium (RPE) and photoreceptors and is estimated to account for approximately 10% of AMD-related blindness [1-4]. The Age-Related Eye...

Expensive Malware

Cryptolocker and similar ransomware There is a new breed of computer malware that is spreading rapidly. The first major manifestation of this new type is known as Cryptolocker. At present it’s a Windows only problem (all versions), but it’s likely...

Two cases of acute syphilitic posterior placoid chorioretinitis

Syphilis has re-emerged as a significant public health concern, with the World Health Organization (WHO) estimating that 8 million adults aged 15–49 acquired syphilis in 2022. Untreated syphilis can have severe consequences, including cardiovascular, neurological and ocular complications. Ocular manifestations...