You searched for "acuity"

1311 results found

Post-stroke visual impairment: how big is the problem, how do we identify it, what we can do about it, and why does it matter?

In the UK, 100,000 new strokes occur each year, with 1.3 million stroke survivors [1]. This article will focus on post-stroke visual impairment, discussing topics of how common it is, how it can be detected, possible management options and how...

Illuminating task lighting

Good lighting is always important but especially for patients who are visually impaired. Janet Pooley provides an overview. We tend to discuss lighting with patients when their vision is reduced, and where we are considering higher reading adds or low...

The management of possibly progressive pterygium

A 43-year-old Sudanese male patient is referred by his GP with a fleshy lesion encroaching the nasal cornea for the last six months. History Make note of: risk factors, i.e. UV exposure and ocular irritation - history of living in...

A patient report of pseudoxanthoma elasticum, angioid streaks and choroidal neovascularisation

Angioid streaks (AS) on their own do not cause many problems, with the majority of patients remaining asymptomatic [1]. However, once choroidal neovascularisation (CNV) occurs, the visual prognosis of the patient rapidly declines [2]. Treatment is imperative to try and...

Principles of contact lens fitting in keratoconus

Keratoconus is an ectatic condition of the cornea characterised by progressive conical distortion with irregular astigmatism, myopia and apical protrusion. Most cases progress slowly resulting in varying degrees of myopic astigmatism. Management of keratoconus includes spectacles, soft contact lenses, a...

Measuring patient-reported outcomes after refractive surgery to assess patient satisfaction

Patient-reported outcomes enable surgeons to evaluate patients’ symptoms and satisfaction after laser vision correction. The great majority of patients are pleased with their outcomes from laser vision correction, whether it is with photorefractive keratectomy, laser in-situ keratomileusis (LASIK), or small...

A missed intraocular telescope – an opportunity to re-focus the evidence

Intraocular telescopes allow magnification of the image so that it would be projected into a larger area of the macula, this makes the central defect caused by dry age-related macular degeneration (AMD) smaller. The most common approach is a Galilean...

Dementia and visual impairment: what is the relationship and are we providing the best care?

Carla Maden discusses the implications of living with both dementia and visual impairment, and how general medical junior doctors and ophthalmologists can help to alleviate this burden and improve the quality of life of such patients. Dementia and visual impairment...

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...

Implications of missed foreign bodies under the upper eyelid

Children aren’t the best historians. As a result, clinicians sometimes rely on the accounts of parents regarding problems. Missed foreign bodies due to poor histories or incomplete examinations may result in irreversible loss of vision. This case report shines light...

My top five: Emerging alternatives to manage and treat nAMD

Wet (exudative or neovascular) age-related macular degeneration (AMD) is characterised by choroidal neovascularisation, in which new blood vessels from the choroid invade through Bruch’s membrane. These blood vessels proliferate beneath or through the retinal pigment epithelium (RPE), causing patients to...

My Top Five: Emerging alternatives to manage and treat nAMD

Wet (exudative or neovascular) age-related macular degeneration (AMD) is characterised by choroidal neovascularisation, in which new blood vessels from the choroid invade through Bruch’s membrane. These blood vessels proliferate beneath or through the retinal pigment epithelium (RPE), causing patients to...