Navigation Links
Vision problems prompt older drivers to put down the keys
Date:1/6/2009

Rockville, MD With 30 million drivers in the US aged 65 and over, we count on older Americans to recognize when they can no longer drive safely and decide that it's time to stay off the road. A new study finds that a decrease in vision function is a key factor in bringing about this decision.

The Salisbury Eye Evaluation and Driving Study (SEEDS) (http://www.iovs.org/cgi/content/full/50/1/107), conducted by researchers affiliated with Johns Hopkins University, looked at changes in vision, cognition and the general health status of more than 1,200 licensed drivers aged 67-87 in Salisbury, MD, a community with limited public transportation. SEEDS is unique, in that the researchers performed comprehensive tests of both vision and cognitive function.

The results, recently published in the peer-reviewed journal Investigative Ophthalmology & Visual Science (www.iovs.org), reveal that after a year, 1.5 percent of the drivers had given up driving, and another 3.4 percent had restricted their driving. The most common predictors of stopping or decreasing driving were slow visual scanning, psychomotor speed and poor visuo-constructional skills, as well as reduced contrast sensitivity. (These skills are necessary to help drivers be aware of and respond to other cars, road conditions and road signs. Contrast sensitivity is the ability to detect detail in shades of gray; it is necessary for driving in poor weather and low lighting.)

"These skills are important for safe and confident driving where objects are moving at rapid speeds in relation to each other, and timely and accurate judgments are required," the researchers stated.

The study, which was in part supported by the National Institute of Aging, also found that women were four times more likely than men to stop or restrict their driving. In addition, drivers who had higher depression scores on the initial test were more likely to have given up or restricted their driving after a year. Previous studies have examined depression as an effect of giving up driving, not as a predictor.

"Older drivers are the fastest growing sector of all licensed drivers in the US," noted researcher Lisa Keay, PhD. "The decision to stop or limit driving to one's own neighborhood has major implications for personal independence but it is an important way to maintain the safety of older drivers and those who share the road.

"As a society, we would like to think that when a driver recognizes that his or her functions related to vision or cognition are declining, they make that crucial decision. My colleagues and I found it reassuring that in this group, that appeared to be the case."


'/>"/>

Contact: Joanne Olson
jolson@arvo.org
240-221-2923
Association for Research in Vision and Ophthalmology
Source:Eurekalert

Related medicine news :

1. Vision restoration therapy shown to improve brain activity in brain injured patients
2. Mouse vision has a rhythm all its own
3. HEI, Inc. Announces Sale of RFID Division Assets
4. QUANTEL Intends to Strengthen its Dermatology/ Aesthetics Division With the Acquisition of WaveLight Aesthetic GmbH
5. The aye-ayes have it: The preservation of color vision in a creature of the night
6. Can brain-injured, partially-blind stroke patients regain some of their lost vision?
7. HEI, Inc. Closes on Sale of RFID Division Assets
8. Elliott Extremely Dissatisfied With Genzyme Bid for Bioenvision; Believes Offer Significantly Undervalues Company
9. Colorado Medical School Receives Provisional Accreditation
10. Poor Senior Vision Often a Window on Disease
11. Drug Detection Kits Manufactured By IDenta Corp. Shown During French Television Broadcast (at TF1) - Product Aids French Police In Bust of 600 Kilograms Of Cocaine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... ... As health professionals work to improve their approach to healthcare, there is a ... filling out a survey; in many cases health professionals and patients are working together ... research on the importance of active engagement with patients and members of the public ...
(Date:10/13/2017)... ... October 13, 2017 , ... PurhealthRX , a leading Health and ... Applying the Purzorb™process to full spectrum CBD oil will revolutionize the rapidly growing CBD ... that can be easily incorporated into liquid products, while reducing costs to end users. ...
(Date:10/13/2017)... ... 2017 , ... Many families have long-term insurance that covers care for a ... waiver for care if the client has a cognitive impairment diagnosis. , “What ... is often waived, so the benefits from their insurance start immediately,” said Mechell Vieira, ...
(Date:10/13/2017)... ... October 13, 2017 , ... Yisrayl Hawkins, Pastor and ... explains one of the most popular and least understood books in the Holy Scriptures, ... puzzling descriptions that have baffled scholars for centuries. Many have tossed it off as ...
(Date:10/13/2017)... ... October 13, 2017 , ... “America On The Brink”: the Christian history ... The Brink” is the creation of published author, William Nowers. Captain Nowers and ... WWII veteran, he spent thirty years in the Navy. Following his career as ...
Breaking Medicine News(10 mins):
(Date:9/23/2017)... Janssen Biotech, Inc. (Janssen) announced today that ... U.S. Food and Drug Administration (FDA) for the Biologics ... treatment of moderately to severely active rheumatoid arthritis (RA). ... needed to further evaluate the safety of sirukumab in ... "We are disappointed ...
(Date:9/19/2017)... , Sept. 19, 2017 HistoSonics, Inc., a venture-backed medical device company developing ... of targeted tissues, announced three leadership team developments today:   ... ... ... Veteran medical device executive Josh Stopek ...
(Date:9/18/2017)... PROVIDENCE, R.I. , Sept. 18, 2017 ... in the fields of bioinformatics and immune ... to develop a protective avian influenza A (H7N9) vaccine. ... is distantly related to seasonal influenza and ... approaches, which rely on prior exposure to be ...
Breaking Medicine Technology: