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Herpes zoster ophthalmicus: the essentials
Herpes zoster, also referred to as shingles, is a common infection most typically caused by the reactivation of varicella zoster virus that lies dormant (sometime for decades) in the dorsal root nerve ganglion following primary chickenpox infection [1]. In 10-20%...Herpes zoster ophthalmicus: a clinician’s perspective
Introduction Herpes zoster, commonly known as shingles, is caused by the reactivation of varicella zoster virus (VZV). The term herpes is derived from a Greek work, herpein, which means ‘creeping’ and the word zoster means a belt or a girdle...
Laser pointer maculopathy
The objective of this study was to describe the potential clinical presentations of retinal pathology resulting from exposure to laser pointers. The study included eight eyes of seven patients. Mean age was 18.7 years (12-36). Most were accidental self-inflicted while...
Using MRI to assess normal variation in optic chiasm anatomy
The authors present an MRI study including 61 MRI scans using a 1.5 T with slice thickness of 1 or 5mm and the sequence showing the highest resolution of the chiasm. A predetermined set of measurements were taken in a...New Flying Eye Hospital takes to the skies for its first programme
In June of this year, international eye care charity Orbis launched their new Flying Eye Hospital, a powerful tool helping the medical community combat preventable blindness through sustainable methods. On board an MD-10 aircraft, a fully accredited ophthalmic facility can...
Retinotopic fMRI reveals visual dysfunction and functional reorganisation in the visual cortex of glaucoma patients
This study investigated the retinotopic functional representation in the visual cortex of mild to moderate primary open-angle glaucoma (POAG) participants and age-matched normal volunteers, using wide-view visual presentation, high-resolution retinotopic stimuli, and high-resolution blood oxygenation level dependent (BOLD) functional magnetic...
Microdroplet and splatter contamination during phacoemulsification in COVID-19 era
Half a millilitre of fluorescein was incorporated into 400ml of balanced salt solution to identify microdroplet and splatter from phacoemulsification to simulate possible COVID-19 contamination. Five porcine eyes were mounted to an ophthalmic mannequin head and two surgeons (height 189cm,...The International AMD Genomics Consortium study: another success in understanding the complex genetics of AMD
Age-related macular degeneration (AMD) is a neurodegenerative complex disease of the eye and a major cause of blindness and visual impairment among the elderly worldwide. The early stages of the disease are characterised by asymptomatic pigmentary abnormalities and accumulation of...DR-NET National DR Workshop in Tanzania: Policy, training and technology
Diabetic retinopathy (DR) is a leading cause of moderate to severe visual impairment (VI) and blindness worldwide, posing a significant public health challenge. As the prevalence of diabetes continues to rise globally, particularly in low- and middle-income countries (LMICs), the...My Top Five: Key insights from recent research into uveitis in adults
Uveitis, characterised by inflammation of the uvea – the eye’s middle layer comprising the iris, ciliary body, and choroid – remains a leading cause of visual impairment worldwide [1]. It primarily affects adults aged 20–50 years. Untreated uveitis may cause...
