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Understanding spaceflight-associated neuro-ocular syndrome (SANS): what do we know?
Introduction Formerly known as visual impairment and intracranial pressure syndrome (VIIP), space-related neuro-ocular syndrome (SANS) is defined by a collection of ophthalmic and neurological findings in astronauts after long-term spaceflight [1]. Changes in the eyeball, such as hyperopic shift, during...Clinical relevance of the anatomic classification of neovascular age-related macular degeneration
The author explains why an OCT-based classification of neovascular AMD is needed and how these neovascular subtypes may help to predict patients’ long-term visual outcome. Age-related macular degeneration (AMD) is a chronic and progressive neurodegenerative process involving the macula in...Pathophysiology of diabetic macular oedema: why combination therapy may be better
The prevalence of diabetes has continued to increase over the years. It is currently estimated that there are 382 million with diabetes worldwide in 2013, and that this figure is expected to rise to 592 million by 2035 [1]. In...Traumatic injuries from foam Nerf bullets
Background Three patients are presented in this case report: an adult and two children which were subjected to ocular injuries from Nerf gun bullets. Generally, Nerf guns are considered safer than airsoft guns. While there are many papers on airsoft...The assessment of pupils and pupillary reactions
Understanding pupillary reactions is vital in understanding basic neuro-opthalmology. It is a skill required in eye casualty, clinics and perhaps most importantly, exams. To start at the beginning, the pupil is the central aperture of the iris, its size controlling...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...FAQs about cerebral visual impairment (CVI): identifying and helping those affected
Cerebral visual impairment is common in both adults and children, yet the diagnosis can easily be missed unless one is tuned into the presenting features. This article provides a succinct introduction to this important topic. What is vision? Vision is...Corneal transplantation in the United Kingdom: are we blind to the challenges that still exist after the Organ Donation Bill?
Corneal transplantation (CT) is a significant treatment option for a huge number of patients in the United Kingdom (UK) [1]. For an individual, CT results in a substantial improvement in quality of life. Penetrating keratoplasty with full thickness grafting has...
