bannerHON
img
HONnews
HONnews
img PATIENT / PARTICULIER img PROFESSIONNEL DE SANTE img WEBMESTRE img
img
 
img
HONcode sites
Khresmoi - new !
HONselect
News
Conferences
Images

Themes:
A B C D E F G H I
J K L M N O P Q
R S T U V W X Y Z
Browse archive:
2017: O S A J J M A M F J
2016: D N O

 
  Other news for:
Eye Diseases
 Resources from HONselect
Peripheral Vision Varies From Person to Person
And 'bad spots' get even worse if there's a lot to look at, study says

By Robert Preidt

THURSDAY, April 13, 2017 (HealthDay News) -- Do you feel like you can't ever catch a ball that comes in from your left side? A bad spot in your peripheral vision may be to blame.

Peripheral vision is the ability to see things that aren't in the center of your field of vision.

A new small study found significant differences in people's ability to detect objects in their peripheral vision. For example, some people were better at spotting things on the left, while others excelled at seeing things on the right.

"Everyone has their own pattern of sensitivity, with islands of poor vision and other regions of good vision," said study lead author John Greenwood, from University College London in England.

Greenwood and his team gave 12 people a series of perception tests over several years. Overall, the participants were worse at spotting objects in crowded environments when they were above or below eye level, although there was variation between individuals.

The researchers used a test focusing on a point in the center of the screen while images of clocks were shown in different parts of the visual field -- either a clock alone or with two other clocks next to it.

The researchers found that it was harder to tell time on the central clock when the other clocks were closer. This is known as "visual crowding."

"If you're looking for your keys, then this profile will affect your ability to find them. For example, if your keys are on a table to the left of where you're focusing, the presence of books and papers on the table may stop you spotting the keys," Greenwood said in a university news release.

"Someone with strong left-sided vision could spot the keys even if they're right next to the book, whereas someone else might not notice the keys unless they're a foot away from the book. There is substantial variation between different people," he said.

Understanding that peripheral vision varies could be especially helpful when driving.

"If you're driving a truck with a high cabin and looking straight ahead, you're less likely to notice pedestrians or cyclists at street level in your peripheral vision than if you were lower down and looking to the left and right," Greenwood said.

"A visually cluttered environment like a busy city road makes it even more difficult. As well as considering the physical blind spots on vehicles, we should remember that the people behind the wheel will also have different areas where their peripheral vision is better or worse," he said.

The study was published this week in the journal Proceedings of the National Academy of Sciences.

More information

The U.S. National Library of Medicine explains testing for peripheral vision.

SOURCE: University College London, news release, April 10, 2017

Copyright © 2017 HealthDay. All rights reserved. URL:http://consumer.healthday.com/Article.asp?AID=721491

Resources from HONselect: HONselect is the HON's medical search engine. It retrieves scientific articles, images, conferences and web sites on the selected subject.
Aptitude
Research Personnel
Eye
Affect
Lead
The list of medical terms above are retrieved automatically from the article.

Disclaimer: The text presented on this page is not a substitute for professional medical advice. It is for your information only and may not represent your true individual medical situation. Do not hesitate to consult your healthcare provider if you have any questions or concerns. Do not use this information to diagnose or treat a health problem or disease without consulting a qualified healthcare professional.
Be advised that HealthDay articles are derived from various sources and may not reflect your own country regulations. The Health On the Net Foundation does not endorse opinions, products, or services that may appear in HealthDay articles.


Home img About us img MediaCorner img HON newsletter img Site map img Ethical policies img Contact