Nav: Home

New study examines full range of post-stroke visual impairments

October 11, 2017

A new University of Liverpool study, published today in Brain and Behaviour, examines the wide range of visual impairments developed by stroke survivors.

Approximately 65% of acute stroke survivors have visual impairment which typically relates to impaired central or peripheral vision, eye movement abnormalities, or visual perceptual defects.

Symptoms can include blurred or altered vision, double or jumbled vision, loss of visual field, reading difficulty, inability to recognize familiar objects or people and glare.

Post stroke visual impairment (PSVI) is currently an under researched area. However the full range of impairments is currently unknown.

915 post-stroke patients

In order to profile the full range of visual disorders researchers from the University's Department of Health Services Research, led by Dr Fiona Rowe, examined the visual impairment screening/referral forms from 915 post-stroke patients from 20 NHS hospital trusts.

The researchers found that the average number of days post-stroke onset before a visual assessment was conducted was 22.

Once assessed 92% were confirmed to have a visual impairment, of these:
  • 24% had reduced clarity of vision (central visual acuity)

  • 16% percent of those with a visual impairment had developed a squint (strabismus)

  • 68% had impairments to the way their eye or eyes moved (ocular motility disorders)

  • Peripheral visual field loss was present in 52%

  • 15% had developed a condition causing them to ignore everything on one side of their visual world. The condition, known as visual inattention, usually affects people who have had a right sided stroke and they ignore things on their left side

Overall 84% were visually symptomatic with visual field loss the most common complaint followed by blurred vision, reading difficulty, and diplopia.

Wide range of disorders

Treatment options were provided to all with confirmed visual impairment. Targeted advice was most commonly provided along with refraction, prisms, and occlusion.

Of the research Dr Rowe, said: "There are a wide range of visual disorders that occur following stroke and, frequently, with visual symptoms. There are equally a wide variety of treatment options available for these individuals.

"Our research highlights the fact that ALL stroke survivors require early screening for visual impairment and warrant referral for specialist assessment and targeted treatment specific to the type of visual impairment."
-end-
The full paper, entitled 'Vision In Stroke cohort: Profile overview of visual impairment', can be found here: http://onlinelibrary.wiley.com/doi/10.1002/brb3.771/abstract

University of Liverpool

Related Stroke Articles:

More stroke awareness, better eating habits may help reduce stroke risk for young adult African-Americans
Young African-Americans are experiencing higher rates of stroke because of health conditions such as high blood pressure, diabetes and obesity, yet their perception of their stroke risk is low.
How to help patients recover after a stroke
The existing approach to brain stimulation for rehabilitation after a stroke does not take into account the diversity of lesions and the individual characteristics of patients' brains.
Kids with headache after stroke might be at risk for another stroke
A new study has found a high incidence of headaches in pediatric stroke survivors and identified a possible association between post-stroke headache and stroke recurrence.
High stroke impact in low- and middle-income countries examined at 11th World Stroke Congress
Less wealthy countries struggle to meet greater need with far fewer resources.
Marijuana use might lead to higher risk of stroke, World Stroke Congress to be told
A five-year study of hospital statistics from the United States shows that the incidence of stroke has risen steadily among marijuana users even though the overall rate of stroke remained constant over the same period.
We need to talk about sexuality after stroke
Stroke survivors and their partners are not adequately supported to deal with changes to their relationships, self-identity, gender roles and intimacy following stroke, according to new research from the University of Sydney.
Standardized stroke protocol can ensure ELVO stroke patients are treated within 60 minutes
A new study shows that developing a standardized stroke protocol of having neurointerventional teams meet suspected emergent large vessel occlusion (ELVO) stroke patients upon their arrival at the hospital achieves a median door-to-recanalization time of less than 60 minutes.
Stroke affects more than just the physical
A new study looks at what problems affect people most after a stroke and it provides a broader picture than what some may usually expect to see.
Stroke journal features women's studies on how gender influences stroke risk, treatment and outcomes
Many aspects of strokes affect women and men differently, and four articles in the American Heart Association's journal Stroke highlight recent research and identify future research needs.
Too few with stroke of the eye are treated to reduce future stroke
Only one-third of 5,600 patients with retinal infarction, or stroke in the eye, underwent basic stroke work-up, and fewer than one in 10 were seen by a neurologist.
More Stroke News and Stroke Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Uncharted
There's so much we've yet to explore–from outer space to the deep ocean to our own brains. This hour, Manoush goes on a journey through those uncharted places, led by TED Science Curator David Biello.
Now Playing: Science for the People

#556 The Power of Friendship
It's 2020 and times are tough. Maybe some of us are learning about social distancing the hard way. Maybe we just are all a little anxious. No matter what, we could probably use a friend. But what is a friend, exactly? And why do we need them so much? This week host Bethany Brookshire speaks with Lydia Denworth, author of the new book "Friendship: The Evolution, Biology, and Extraordinary Power of Life's Fundamental Bond". This episode is hosted by Bethany Brookshire, science writer from Science News.
Now Playing: Radiolab

Dispatch 1: Numbers
In a recent Radiolab group huddle, with coronavirus unraveling around us, the team found themselves grappling with all the numbers connected to COVID-19. Our new found 6 foot bubbles of personal space. Three percent mortality rate (or 1, or 2, or 4). 7,000 cases (now, much much more). So in the wake of that meeting, we reflect on the onslaught of numbers - what they reveal, and what they hide.  Support Radiolab today at Radiolab.org/donate.